Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thu lang » thu hang, thu bang, tho lang
phu lang » phap lang, phu khang, phu luong
tu sach » thu sach, su sach, te sach
cham tu » pham tu, cam tu, chai tu
hieu va » lieu va, hieu qua
va cham » va chat, va tham
tu ban » thu ban, te ban

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