Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
quan trong » gian trong
hoc thieu » toc thieu, hoc hien
qua trong » qua trinh, qua song, qua cong
cong tac » cong ty
tac tran » tan tran, tac trai, tac tren
tran cho » trang cho, toan cho, tra cho

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 - canh tranh ((qua trong) or (quan trong)) cong tac tran cho~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh ((qua trong) OR (quan trong)) cong tac tran cho.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh ((qua trong) or (quan trong)) cong tac tran cho*.