Perhaps you should try some spelling variations:
su triet » su tien, ve triet
hieu ve » hieu va, hieu van
cam loc » cam lo
va hanh » van hanh, va thanh, va danh
su viet » so viet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
loc va » hoc va, luc va
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: tu sac ky nang x hoi. hieu ve cam loc va hanh vi ((su triet) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang x hoi. hieu ve cam loc va hanh vi ((su triet) OR (su viet)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang x hoi. hieu ve cam loc va hanh vi ((su triet) or (su viet))*.