Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
chung cong » chong cong, phung cong, chung thong
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
anh dung » anh dong, anh huong, sach dung
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 xanh - anh dung luan ((chung cong) or (nhung cong)) tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - anh dung luan ((chung cong) OR (nhung cong)) tac toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - anh dung luan ((chung cong) or (nhung cong)) tac toan cau*.