Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
duong manh » duong van
hoc thieu » toc thieu, hoc hien
van hoan » van hoang, van hoa, van toan
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
va nang » van nang, da nang, cam nang

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