Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
bang cong » bang song, hang cong, dung cong
dang cong » dung cong
cong lap » cong luan, cong lang, cong tac
toan cau » toan cao, toan ban, toan tap
le toan » ke toan, le doan, le tuan

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 - thanh cong lap ((bang cong) or (dang cong)) le toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh cong lap ((bang cong) OR (dang cong)) le toan cau*.