Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
cua trung » cua truong, xuan trung, cua nhung
cong tang » cong thang, cong lang, cong vang
ho chieu » theo chieu, doi chieu, mot chieu
cong tan » cong tac, cong san, cong thanh
tai cao » thai cao, tao cao, tai sao

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 thieu)) sach - hanh trinh cua trung ((cong tan) or (cong tang)) tai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sach - hanh trinh cua trung ((cong tan) OR (cong tang)) tai cao.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) sach - hanh trinh cua trung ((cong tan) or (cong tang)) tai cao*.