Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nham thu, pham thuc
thu lang » thu hang, phu lang, tho lang
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
thu bang » thu ban, thu hang, chu bang
nam thuc » nam thuoc, am thuc, nam thu
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
vi cua » vai cua, di cua
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: su sach ((thu lang) or (thu bang)) xa hoi. hieu ve ((nham thuc) OR (nam thuc)) va thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((thu lang) OR (thu bang)) xa hoi. hieu ve ((nham thuc) OR (nam thuc)) va thanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((thu lang) or (thu bang)) xa hoi. hieu ve ((nham thuc) OR (nam thuc)) va thanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ((thu lang) or (thu bang)) xa hoi. hieu ve ((nham thuc) OR (nam thuc)) va thanh vi cua te*.