Perhaps you should try some spelling variations:
vu chat » va chat, ve chat, du chat
ky tang » ky nang, kho tang, ky trong
ky dang » ky nang, ky danh
dai hoi » dai hoc, dai hai, dai moi
hieu vu » hieu va, hieu ve, hieu su
luc va » duc va, loc va
vi cua » vai cua, di cua
tu sac » tu sach, tu cac, tu san
tuc va » thuc va, truc va, tuc xa
cua te » cua tu

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 tang) OR (ky dang)) dai hoi. hieu vu chat ((tuc va) or (luc va)) hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ((ky tang) OR (ky dang)) dai hoi. hieu vu chat ((tuc va) OR (luc va)) hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ((ky tang) OR (ky dang)) dai hoi. hieu vu chat ((tuc va) or (luc va)) hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: tu sac ((ky tang) OR (ky dang)) dai hoi. hieu vu chat ((tuc va) or (luc va)) hanh vi cua te*.