Perhaps you should try some spelling variations:
va hanh » van hanh, va thanh, ban hanh
ky tang » ky nang, kho tang, ky trong
vai cua » dai cua, hai cua, lai cua
ky dang » ky nang, ky danh
dan hoi » dan hoc, dai hoi, van hoi
hieu vu » hieu va, hieu ve, hieu su
va danh » va dinh, va dan, dia danh
tu san » thu san, tu ban, tu can
vu cam » vu cham, vu cao, va cam
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 san ((ky tang) OR (ky dang)) dan hoi. hieu vu cam xuc ((va hanh) or (va danh)) vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ((ky tang) OR (ky dang)) dan hoi. hieu vu cam xuc ((va hanh) OR (va danh)) vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ((ky tang) OR (ky dang)) dan hoi. hieu vu cam xuc ((va hanh) or (va danh)) vai cua te".
• Adding a wildcard symbol may retrieve word variants: tu san ((ky tang) OR (ky dang)) dan hoi. hieu vu cam xuc ((va hanh) or (va danh)) vai cua te*.