Perhaps you should try some spelling variations:
vay doanh » van doanh, ly doanh, voi doanh
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cua triet, dua tren
luc vay » luc va, luc van, luoc van
va cham » va chat, va tham
vu cham » vu kham, tu cham, qua cham
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
cuu tre » cau tren, cau treo

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty nang xa hoi. hieu ((vu cham) or (va cham)) luc vay doanh tai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. hieu ((vu cham) OR (va cham)) luc vay doanh tai ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. hieu ((vu cham) or (va cham)) luc vay doanh tai ((cua tre) or (cuu tre))*.