Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
su sach » so sach, vu sach
tu nang » tru nang, tu nong, tu nano
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
va hanh » van hanh, va thanh, va danh
su cao » cu cao, vu cao, su co
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua, di cua
x hoi » xa hoi, o hoi, x ho

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) or (su cao)) tu nang x hoi. hieu ve cam tuc va hanh vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (su cao)) tu nang x hoi. hieu ve cam tuc va hanh vi cua viet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (su cao)) tu nang x hoi. hieu ve cam tuc va hanh vi cua viet*.