Perhaps you should try some spelling variations:
nhung phuong » nhu phuong, truong phuong, bang phuong
dung phuong » dung thuong, bang phuong, dung chung
theo chieu » theo tieu, ho chieu, theo chu
hanh trang » thanh trung, canh tranh, hanh trinh
doc hieu » toc thieu, hoc thieu, hoc hien
trang va » tran van, hang va
anh toan » manh toan, anh tuan, thanh toan
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: ((doc hieu) or (theo chieu)) xanh - hanh trang va ((nhung phuong) OR (dung phuong)) anh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (theo chieu)) xanh - hanh trang va ((nhung phuong) OR (dung phuong)) anh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (theo chieu)) xanh - hanh trang va ((nhung phuong) OR (dung phuong)) anh toan cao".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (theo chieu)) xanh - hanh trang va ((nhung phuong) OR (dung phuong)) anh toan cao*.