4.5.3.14. Mixture of AND and OR

4.5.3. Text Search 4.5.3.14. Mixture of AND and OR - Parentheses
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	Note
	Empty space is equivalent to AND AND has higher priority than OR Parentheses has higher priority than AND and OR

Examples:

Searched: A hexagon bolt with either M10x50 or M10x60
```
hexagon bolt (M10x50 OR M10x60)
```
is equivalent to
```
hexagon bolt M10x50 OR hexagon bolt M10x60
```
If you would omit the brackets in the first case, you would receive much more unclear results.
In English sometimes the term "bolt" and sometimes "screw" is used.
Search input:
```
head cap (bolt OR screw)
```
Searched ISO 4762 or ISO 12474
Search input:
```
ISO (4762 OR 12474)
```
Searched: Head cap bolt with strength class 10.9 or 12.9 (If the values for strength are found in the link database or in the characteristic attribute table doesn't matter.)
Search input:
```
Head cap bolt (10.9 OR 12.9)
```
Searching for a part with two options in length
```
Hexagon bolt (L=380 OR L=400)
```
Searching for a cheese head screw or a hexagon screw with thread proximate till head and at the same time an entry "HiHo" or "Hello" (in the link database).
Search input:
```
(Cheese head screw) OR (Hexagon screws thread proximate till head)
 (HiHo OR Hello)
```

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