Perhaps you should try some spelling variations:
thanh trung » thanh tung
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cua khong » hua khong, cua phuong, cua thuong
ho chieu » theo chieu, doi chieu, mot chieu
cang dan » cong dan, tang dan, dang dan
canh dan » canh van, sanh dan, thanh dan
khan cap » khan ap, than cap, khoan cam

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