Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thu lang » thu hang, phu lang, tho lang
thanh le » thinh le, thanh ve, thanh de
thu bang » thu ban, thu hang, chu bang
tu sach » thu sach, su sach, te sach
cam tuc » cam xuc, cam tu, nam thuc
tuc ban » thuc ban, truc ban, tu ban
hieu va » hieu qua
le cua » ly cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((thu lang) or (thu bang)) xa hoi. ((hieu va) OR (lieu va)) cam tuc ban thanh le cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((thu lang) OR (thu bang)) xa hoi. ((hieu va) OR (lieu va)) cam tuc ban thanh le cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((thu lang) or (thu bang)) xa hoi. ((hieu va) OR (lieu va)) cam tuc ban thanh le cua vat".
• Adding a wildcard symbol may retrieve word variants: tu sach ((thu lang) or (thu bang)) xa hoi. ((hieu va) OR (lieu va)) cam tuc ban thanh le cua vat*.