Perhaps you should try some spelling variations:
ve triet » va trien, su triet
thanh xa » thanh ha, thanh va, thanh ba
cam tuc » cam tu, nam thuc, dam thuc
hanh va » hang va, hanh vi
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
so sach » so sanh, bo sach, co sach
va ve » va de, va le, va vi

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) or (so sach)) thi thanh xa hoi. hieu ve ((cam tuc) or (cam xuc)) va hanh va ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (so sach)) thi thanh xa hoi. hieu ve ((cam tuc) OR (cam xuc)) va hanh va ve triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (so sach)) thi thanh xa hoi. hieu ve ((cam tuc) or (cam xuc)) va hanh va ve triet*.