Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
cong bang » cuong bang, dong bang, hong bang
bang than » bang thanh, ban than, sang than
ho chieu » theo chieu, doi chieu, mot chieu
tang cua » mang cua, tang luan, thong cua
hang cua » mang cua, hang ca, huong cua
than cap » khan cap, thanh lap, thanh cac

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