Perhaps you should try some spelling variations:
vinh cuu » dinh cuu, sinh cua, dinh cu
ky dang » ky nang, ky danh
ky tang » ky nang, kho tang, ky trong
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
soc va » hoc va, loc va, doc va
vi cuu » vi luu

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 tang)) xa hoi. hieu ve cham soc va danh ((vi cuu) OR (vinh cuu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ((ky dang) OR (ky tang)) xa hoi. hieu ve cham soc va danh ((vi cuu) OR (vinh cuu)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ((ky dang) or (ky tang)) xa hoi. hieu ve cham soc va danh ((vi cuu) OR (vinh cuu)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ((ky dang) or (ky tang)) xa hoi. hieu ve cham soc va danh ((vi cuu) OR (vinh cuu)) tre*.