Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
hang hang » nang hang, cang thang, hung thang
ho chieu » theo chieu, doi chieu, mot chieu
van dung » van dong, xay dung, tin dung
cong tan » cong tac, cong san, cong thanh
tran ban » tranh ban, tran van, toan ban
va dung » va duong, vat dung, va ung

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