Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
nang mai » nang ma, nang tai, lang mai
so sach » bo sach, co sach, hoc sach
hoi cua » hoi chuc
doi cua » dai cua
cam tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu va, hieu van
so sanh » do sanh
mai hoi » mai khoi, dai hoi, lai hoi
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) OR (so sanh)) y nang mai hoi. hieu ve cam tuc va thanh ((doi cua) or (hoi cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) y nang mai hoi. hieu ve cam tuc va thanh ((doi cua) OR (hoi cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (so sanh)) y nang mai hoi. hieu ve cam tuc va thanh ((doi cua) or (hoi cua)) te".
• Adding a wildcard symbol may retrieve word variants: ((so sach) OR (so sanh)) y nang mai hoi. hieu ve cam tuc va thanh ((doi cua) or (hoi cua)) te*.