Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
hanh trung » thanh trung, manh trung, danh trung
tuan nhung » quan nhung, tuan hung, thuat nhung
nhung cong » dung cong, thong cong, hang cong
doc hieu » toc thieu, hoc thieu, hoc hien
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » 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 (doi khi)) xanh - ((hanh trung) OR (hanh trang)) tuan nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (doi khi)) xanh - ((hanh trung) OR (hanh trang)) tuan nhung cong tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) or (doi khi)) xanh - ((hanh trung) OR (hanh trang)) tuan nhung cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (doi khi)) xanh - ((hanh trung) OR (hanh trang)) tuan nhung cong tac toan cau*.