Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cao xuc » cam xuc, cao duc, cao suc
va hanh » va thanh, va danh, ban hanh
tai cua » thai cua, tai cuc, tri cua
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
va cao » va cac, va co, va dao
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: te sac ky lang xa hoi. hieu va cao xuc ((va hanh) OR (van hanh)) tai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky lang xa hoi. hieu va cao xuc ((va hanh) OR (van hanh)) tai cua te".
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. hieu va cao xuc ((va hanh) OR (van hanh)) tai cua te*.