Perhaps you should try some spelling variations:
doanh thai » doanh tai, doanh thanh, doanh nhan
gia doanh » gia thanh, gia dinh, giai doan
thai cua » than cua, tai cuc, tri cua
thu sach » thuat sach, thuoc sach, thu hoach
hieu van » hieu va, thien van, lieu va
duc gia » quoc gia
cac duc » cac du, cao duc, cac dac
van cac » van hac, van cau, van bac
tu sach » te sach, tu cach, vu sach
su sach » so sach, vu sach
ly ang » ly hang, ly vang, ly nang
ang xa » lang xa, mang xa, dang xay

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 (thu sach))) or (su sach)) ly ang xa hoi. hieu van cac duc gia doanh thai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sach) OR (thu sach))) OR (su sach)) ly ang xa hoi. hieu van cac duc gia doanh thai cua vat.
• Adding a wildcard symbol may retrieve word variants: ((((tu sach) or (thu sach))) or (su sach)) ly ang xa hoi. hieu van cac duc gia doanh thai cua vat*.