Perhaps you should try some spelling variations:
su triet » su tien, ve triet
ve cham » va cham, ve chat, vu cham
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
su viet » so viet
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
loc va » hoc va, luc va
ve cam » ve cac, va cam, ve cai
tu sac » tu sach, tu cac, tu san

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 xa hoi. hieu ((ve cam) or (ve cham)) loc va danh vi ((su triet) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu ((ve cam) OR (ve cham)) loc va danh vi ((su triet) OR (su viet)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu ((ve cam) or (ve cham)) loc va danh vi ((su triet) or (su viet))*.