Perhaps you should try some spelling variations:
sach thi » sach thu, sach tai, sach thieu
thanh xa » thanh ha, thanh va, thanh ba
nam thuc » nam thuoc, am thuc, nam thu
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
cam tuc » cam xuc, cam tu, dam thuc
hieu ve » hieu va, hieu van
lam ha » dam ha, lam chat, lam thay
nam ha » nam a, nam va, nam da

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 thi thanh xa hoi. hieu ve ((cam tuc) OR (nam thuc)) va hanh ((lam ha) or (nam ha)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thi thanh xa hoi. hieu ve ((cam tuc) OR (nam thuc)) va hanh ((lam ha) OR (nam ha)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach thi thanh xa hoi. hieu ve ((cam tuc) OR (nam thuc)) va hanh ((lam ha) or (nam ha)) triet*".