Perhaps you should try some spelling variations:
khong cong » thong cong, khong cang, chong cong
hoc thieu » toc thieu, hoc hien
trung hua » trung hoa, trung cua, trung huy
ho chieu » theo chieu, doi chieu, mot chieu
trung ha » trung hoc, trung tam, trung cap
cong dan » cong san, cong tan, huong dan
dan khan » dan khanh, dan chan, dan than
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 hua) OR (trung ha)) khong cong dan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sach - thanh ((trung hua) OR (trung ha)) khong cong dan khan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) sach - thanh ((trung hua) OR (trung ha)) khong cong dan khan cap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) sach - thanh ((trung hua) OR (trung ha)) khong cong dan khan cap*.