Perhaps you should try some spelling variations:
doanh vang » doanh van, doanh sang, doanh quang
vay doanh » van doanh, ly doanh, voi doanh
vang cua » mang cua, hang cua, tang cua
tu sach » thu sach, su sach, te sach
ve cham » va cham, vu cham, ve chim
ve chat » va chat, van chat
tuc vay » tuc va, tu vay, tuc xay
cua tre » cua te, cuu tre, cua triet
y nang » ly nang, v nang, may nang

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 ((y nang) or (ky nang)) xa hoi. hieu ((ve cham) OR (ve chat)) tuc vay doanh vang cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y nang) OR (ky nang)) xa hoi. hieu ((ve cham) OR (ve chat)) tuc vay doanh vang cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) or (ky nang)) xa hoi. hieu ((ve cham) OR (ve chat)) tuc vay doanh vang cua tre*".