Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
hang hang » nang hang, hung thang, lang thang
hang cong » dang cong, hang nong, bang cong
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cap » khan cap, than cap, cao cap
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu sach - ((hang hang) or (cang thang)) va hang cong dan chan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - ((hang hang) OR (cang thang)) va hang cong dan chan cap*.