Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
cua nhung » va nhung
doc hieu » hoc thieu, hoc hien
cua dang » cua cong, cua ban
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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 (toc thieu)) xanh - hanh trang ((cua nhung) or (cua dang)) cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) xanh - hanh trang ((cua nhung) OR (cua dang)) cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (toc thieu)) xanh - hanh trang ((cua nhung) or (cua dang)) cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (toc thieu)) xanh - hanh trang ((cua nhung) or (cua dang)) cong tan toan cau*.