Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
thanh hung » thanh huong, thanh tung, thanh trung
hoc thien » hoc hien, hoc thieu, hoc thiet
hung cay » nhung cay, dung cay, hung ca
cong tac » cong ty
tac hang » tac vang, bac thang, tac chong
hang cau » hang dau, hang ca, nhung cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien hach - thanh hung cay trong cong tac hang cau~.
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh hung cay trong cong tac hang cau*.