Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
manh hung » anh huong
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap
hung va » huong va, hung van, hang va

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 - manh hung va ((nhung cong) or (han tong)) van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - manh hung va ((nhung cong) OR (han tong)) van toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - manh hung va ((nhung cong) or (han tong)) van toan cao*.