Perhaps you should try some spelling variations:
cau treo » cau theo, cau triet, cau trieu
cham xuc » cam xuc, chat xuc, cham soc
cau tren » cu tren, dau tren, ca tren
van hanh » van thanh, ban hanh, van anh
va hanh » va thanh, va danh, ban hanh
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
te sac » te sach, te cac, te san

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 vu cham xuc ((va hanh) OR (van hanh)) dau ((cau tren) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang xa hoi. hieu vu cham xuc ((va hanh) OR (van hanh)) dau ((cau tren) OR (cau treo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky lang xa hoi. hieu vu cham xuc ((va hanh) OR (van hanh)) dau ((cau tren) or (cau treo))".
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. hieu vu cham xuc ((va hanh) OR (van hanh)) dau ((cau tren) or (cau treo))*.