Perhaps you should try some spelling variations:
thieu manh » hieu manh, tien manh, trieu minh
thanh tung » thanh cong
hoc thieu » toc thieu, hoc hien
dan hang » ban hang, van hang, dai hang
dat hang » dat khanh, dat quang, tat thang
cong san » cong tac
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu manh - thanh tung ((dan hang) or (dat hang)) cong san ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu manh - thanh tung ((dan hang) OR (dat hang)) cong san ((than cau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu manh - thanh tung ((dan hang) or (dat hang)) cong san ((than cau) or (phan cau))*.