Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
va doanh » van doanh, vay doanh, va danh
cham xuc » cam xuc, chat xuc, cham soc
van cua » vang cua, ban cua, dan cua
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
sach v » sach va, sach y, sach vay
xuc va » duc va, tuc va, luc va
sach 2 » sach y

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach v) OR (sach 2)) ((nang ma) or (nang x)) hoi. hieu ve cham xuc va doanh van cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach v) OR (sach 2)) ((nang ma) OR (nang x)) hoi. hieu ve cham xuc va doanh van cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach v) OR (sach 2)) ((nang ma) or (nang x)) hoi. hieu ve cham xuc va doanh van cua tre*".