Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
tu sach » thu sach, su sach, te sach
tuc xay » thuc xay, tuc xa, tu xay
van cua » vang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet
tuc vay » tu vay, thuc vat, thuc van
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
tuc va » thuc va, truc va, tuc xa

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