Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
thuong cao » truong cao, thong cao, thuong chau
hoc thieu » toc thieu, hoc hien
cong thuc » cong tac
thanh cap » thanh lap, hanh cap, than cap
ho chieu » theo chieu, doi chieu, mot chieu
cao bang » cao dang, cao tang, cao nang
cong tcc » cong tac, cong ty, cong cu

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 - thanh thuong cao bang ((cong tcc) or (cong thuc)) thanh cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sach - thanh thuong cao bang ((cong tcc) OR (cong thuc)) thanh cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (hoc thieu)) sach - thanh thuong cao bang ((cong tcc) or (cong thuc)) thanh cap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (hoc thieu)) sach - thanh thuong cao bang ((cong tcc) or (cong thuc)) thanh cap*.