Perhaps you should try some spelling variations:
chua xang » chua nang, chuc nang, chu bang
hanh hang » thanh hang, hang hang, hanh han
hang cong » dang cong, hang nong, bang cong
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan cau » phan dau, phan cac, phan tu
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((thuc hanh) or (((chua xang) or (cuu van)))) - hanh hang va hang cong tan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((thuc hanh) OR (((chua xang) OR (cuu van)))) - hanh hang va hang cong tan phan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((thuc hanh) or (((chua xang) or (cuu van)))) - hanh hang va hang cong tan phan cau*.