Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
theo chua » theo chu, ho chua, cheo cua
chua xang » chua nang, chuc nang, chu bang
hanh hang » thanh hang, hanh han, hanh mang
hang hang » nang hang, cang thang, hung thang
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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

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