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
manh toan » thanh toan, anh tuan, tinh toan
van hang » van khang, van hoang, van thang
toan cau » toan cao, toan ban, toan tap
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 ((van hang) or (va nang)) duong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh ((van hang) OR (va nang)) duong manh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh tranh ((van hang) or (va nang)) duong manh toan cau*.