Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
trang xa » trang va, trang ha, trang tai
doanh va » doan va, doanh tai, doanh cua
trong xa » trong xay, trong ca, trong xu
danh vai » danh sai, danh va, doanh van
so sach » so sanh, bo sach, co sach
ve nham » ve nha, ve cham
thuc va » thuc vat, thuc dan, thuc day
sach ta » sach tai, sach xa, sach ha
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ta ((trang xa) or (trong xa)) hoi. hieu ve nham thuc va ((danh vai) or (doanh va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ta ((trang xa) OR (trong xa)) hoi. hieu ve nham thuc va ((danh vai) OR (doanh va)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: so sach ta ((trang xa) or (trong xa)) hoi. hieu ve nham thuc va ((danh vai) or (doanh va)) cuu tre*.