Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan nhung » qua nhung, cua nhung, luan chung
nhung cong » dung cong, thong cong, hang cong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
phan dau » phan tu
hang dau » hang va, hang tai
ho hieu » hoi hieu, nho hieu, co hieu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho hieu) or (ho chieu)) qua - hanh trinh quan nhung cong tan ((phan dau) OR (hang dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho hieu) OR (ho chieu)) qua - hanh trinh quan nhung cong tan ((phan dau) OR (hang dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho hieu) or (ho chieu)) qua - hanh trinh quan nhung cong tan ((phan dau) OR (hang dau))".
• Adding a wildcard symbol may retrieve word variants: ((ho hieu) or (ho chieu)) qua - hanh trinh quan nhung cong tan ((phan dau) OR (hang dau))*.