Perhaps you should try some spelling variations:
khanh vai » khanh van, hanh vi, hanh va
xa khanh » xa thanh, van khanh, dat khanh
dau tren » dat tren, dau tieng, dau trong
dau tien » van tien
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
hieu va » hieu qua
nam tuc » nam thuc, nam truc, nam tu
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang ma hoi. ((hieu va) OR (lieu va)) nam tuc xa khanh vai ((dau tren) or (dau tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ma hoi. ((hieu va) OR (lieu va)) nam tuc xa khanh vai ((dau tren) OR (dau tien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ma hoi. ((hieu va) OR (lieu va)) nam tuc xa khanh vai ((dau tren) or (dau tien))".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ma hoi. ((hieu va) OR (lieu va)) nam tuc xa khanh vai ((dau tren) or (dau tien))*.