Perhaps you should try some spelling variations:
chua tre » chua tri, cua tre, chua trieu
va hanh » van hanh, va thanh, ban hanh
ky tang » ky nang, ky dang, kho tang
vi chua » va chua, vi khuan, chi chua
va danh » va dinh, va dan, dia danh
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
te sai » te tai, te bai, te lai
sai ky » sac ky
ma hoi » mai hoi, ma hoa, me hoi
va cam » va cham, va cac, va cao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sai ky tang ((ma hoi) or (xa hoi)). hieu va cam tuc ((va hanh) OR (va danh)) vi chua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ky tang ((ma hoi) OR (xa hoi)). hieu va cam tuc ((va hanh) OR (va danh)) vi chua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sai ky tang ((ma hoi) or (xa hoi)). hieu va cam tuc ((va hanh) OR (va danh)) vi chua tre*".