Perhaps you should try some spelling variations:
quang dung » quang trung, ung dung, cuong dung
hanh dong » anh dong, ha dong
dung cong » dung trong
theo chu » theo chieu, cho chu, chao chu
chu manh » ho manh, chu han, chu van
anh dang » anh dong, anh dung, anh bang
cong san » cong tac
san phan » san pham, van phan, sat phan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu manh - ((hanh dong) or (anh dang)) quang dung cong san phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu manh - ((hanh dong) OR (anh dang)) quang dung cong san phan tu.
• Adding a wildcard symbol may retrieve word variants: theo chu manh - ((hanh dong) or (anh dang)) quang dung cong san phan tu*.