Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
tranh va » tranh van, trang va, trinh va
van toan » van tuan, van tan, van thanh
toan cao » toan ban, toan tap

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 ((dung cong) or (nhung phuong)) van toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh tranh va ((dung cong) OR (nhung phuong)) van toan cao*.