Perhaps you should try some spelling variations:
cham hoi » cham voi, cham h'roi, pham hoai
ky dang » ky danh
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va danh » va dinh, va dan, va hanh
tu sac » tu sach, tu cac, tu san
vi cuu » vinh cuu
vi luu » vi lua

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