Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, hanh trinh
nhung cong » dung cong, thong cong, hang cong
trang cua » tranh cua, tang cua, trung cua
cua nhung » va nhung
doc hieu » hoc thieu, hoc hien
cong tac » cong ty
doan cau » toan cau, doan dau, doan cap
phan dau » phan tu, hang dau

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)) manh - hanh trang cua nhung cong tac ((doan cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (toc thieu)) manh - hanh trang cua nhung cong tac ((doan cau) OR (phan dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doc hieu) OR (toc thieu)) manh - hanh trang cua nhung cong tac ((doan cau) or (phan dau))".
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) OR (toc thieu)) manh - hanh trang cua nhung cong tac ((doan cau) or (phan dau))*.