Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
hoi cua » hoi chuc
doi cua » dai cua
sach ky » sac ky, sach y, sach ty
ve cac » va cac, vien cac
tuc va » thuc va, truc va, tuc xa
ve cam » ve cham, va cam, ve cai

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 ky nang xa hoi. hieu ((ve cam) or (ve cac)) tuc va thanh ((doi cua) or (hoi cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang xa hoi. hieu ((ve cam) OR (ve cac)) tuc va thanh ((doi cua) OR (hoi cua)) te.
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. hieu ((ve cam) or (ve cac)) tuc va thanh ((doi cua) or (hoi cua)) te*.