Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh tran » hanh trang, thanh tran, hanh tram
bang khan » bang thanh, dang khanh, bang khi
bang nhan » ban nhan, hoang nhan, bang thanh
ho chieu » hoc thieu, doi chieu, mot chieu
tran van » luan van
ban cong » bang cong, van cong, phan cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (theo chieu)) sang - hanh tran van ban cong ((bang khan) OR (bang nhan)) cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sang - hanh tran van ban cong ((bang khan) OR (bang nhan)) cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chieu)) sang - hanh tran van ban cong ((bang khan) OR (bang nhan)) cap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) sang - hanh tran van ban cong ((bang khan) OR (bang nhan)) cap*.