Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
thuc ban » thuoc ban, thuc dan, thu ban
thu lang » thu bang, phu lang, tho lang
thinh le » trinh ly
thu hang » thi hang, thuc hanh, thu huong
thanh le » thanh ve, thanh de, thanh liem
tu sach » thu sach, su sach, te sach
ve pham » vi pham, v pham, ve phan
hieu ve » hieu va, hieu van

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 hang)) xa hoi. hieu ve pham thuc ban ((thanh le) or (thinh le)) cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((thu lang) OR (thu hang)) xa hoi. hieu ve pham thuc ban ((thanh le) OR (thinh le)) cua vat.
• Adding a wildcard symbol may retrieve word variants: tu sach ((thu lang) or (thu hang)) xa hoi. hieu ve pham thuc ban ((thanh le) or (thinh le)) cua vat*.