Perhaps you should try some spelling variations:
cuu tre » cua tre, cau tren, cau treo
luu tre » luu tru, luy tre
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
vu cham » va cham, vu kham, tu cham
ve cham » va cham, ve chat, ve chim
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
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 cham) or (vu cham)) hoc va danh vi ((luu tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu ((ve cham) OR (vu cham)) hoc va danh vi ((luu tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang xa hoi. hieu ((ve cham) or (vu cham)) hoc va danh vi ((luu tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu ((ve cham) or (vu cham)) hoc va danh vi ((luu tre) OR (cuu tre))*.