Perhaps you should try some spelling variations:
trinh suat » trinh luat, trinh sat, trinh quan
hanh trinh » canh tranh, hanh chinh
suat trong » suat thong, luat trong, thuat trong
quang toan » quang tuan, quang doan, quang hoan
quang tran » quang tuan, quang trung, quang thanh
ho chieu » theo chieu, hoc thieu, doi chieu

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 (hoc hien)) sach - hanh trinh suat trong cong ((quang toan) OR (quang tran)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc hien)) sach - hanh trinh suat trong cong ((quang toan) OR (quang tran)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc hien)) sach - hanh trinh suat trong cong ((quang toan) OR (quang tran)) tap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc hien)) sach - hanh trinh suat trong cong ((quang toan) OR (quang tran)) tap*.