Perhaps you should try some spelling variations:
doanh dan » doanh ban, doanh van, doanh dao
vay doanh » van doanh, ly doanh, voi doanh
hien bach » vien bach, thien hach, hien hanh
hieu hien » bieu hien, dieu hien, chieu chien
bach mao » bach mai, bach giao, bach ha
tu sach » thu sach, te sach, tu cach
dan cua » dan ca, ban cua, dai cua
mao vay » mao van
cua tre » cua te, cuu tre, cua triet
nang ma » tang ma, sang ma, nang cao
lang xa » lang ha, dang xay, lang van
su sach » so sach, vu sach

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) or (su sach)) ky ((lang xa) or (nang ma)) hoi. hieu hien bach mao vay doanh dan cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky ((lang xa) OR (nang ma)) hoi. hieu hien bach mao vay doanh dan cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky ((lang xa) or (nang ma)) hoi. hieu hien bach mao vay doanh dan cua tre*.