Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
van duong » van dong, van phong, hai duong
cong nang » cong ngang, cong lang, cong nong
nang quan » ban quan, nang suat
van dung » van dong, xay dung, tin dung
quan can » quan cau, quan van, xuan can

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 ((van duong) or (van dung)) cong nang quan can~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh ((van duong) OR (van dung)) cong nang quan can.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh ((van duong) or (van dung)) cong nang quan can*.