Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung chua » trong chuan, trung ha, trung hoa
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cua » truong cua, trung tuan, trung cap
bang cong » dang cong, bang song, hang cong
than cap » khan cap, thanh lap, thanh cac
cong he » cong che, cong ha, cong de
he than » he thong, le thanh, de thanh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (hieu manh)) - hanh ((trung chua) OR (trung cua)) bang cong he than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (hieu manh)) - hanh ((trung chua) OR (trung cua)) bang cong he than cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sach) or (hieu manh)) - hanh ((trung chua) OR (trung cua)) bang cong he than cap".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (hieu manh)) - hanh ((trung chua) OR (trung cua)) bang cong he than cap*.