Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
manh cuong » anh huong, manh hung, tang cuong
hoc thieu » toc thieu, hoc hien
theo chu » theo chieu, cho chu, chao chu
cuong va » luong va, duong va, cong va
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: ((hoc thieu) or (theo chu)) xanh - manh cuong va nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo chu)) xanh - manh cuong va nhung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (theo chu)) xanh - manh cuong va nhung cong tac toan cau*.