Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
chong cong » cong cong, thong cong, cuong cong
hoc thieu » toc thieu, hoc hien
tang luan » dung luan
tang cua » mang cua, hang cua, thong cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban

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 - hanh ((tang cua) or (tang luan)) chong cong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh ((tang cua) OR (tang luan)) chong cong tac toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh ((tang cua) or (tang luan)) chong cong tac toan tap*.