Perhaps you should try some spelling variations:
hang tai » hang va, dung tai
te sach » toc sach
cac tuc » cac toc, cac tu, cac tac
dao van » do van, dang van
dao vai » dao va, dao bai, dao hai
hieu va » lieu va, hieu qua
hieu ve » hieu van
tai hoi » tai khoi, dai hoi, tai hai
y hang » ly hang, ty hang, yu hang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y hang tai hoi. ((hieu ve) or (hieu va)) cac tuc xa ((dao vai) OR (dao van)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y hang tai hoi. ((hieu ve) OR (hieu va)) cac tuc xa ((dao vai) OR (dao van)) cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y hang tai hoi. ((hieu ve) or (hieu va)) cac tuc xa ((dao vai) OR (dao van)) cua te*".