Perhaps you should try some spelling variations:
dan thanh » dang thanh, danh thanh, ban thanh
lieu van » hieu van, sieu van, lieu nano
thanh tu » hanh tu, nhanh tu, thanh tung
thuc dan » thuc hanh, hoc dan, thuc vat
cuu thuc » cuu tac
sach ky » sac ky, sach y, sach ty
tu sach » thu sach, su sach, te sach
lang xa » lang ha, dang xay, lang van
nang ma » tang ma, sang ma, nang cao
tu cua » hu cua, vu cua
cua te » cua tu

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 ky ((lang xa) or (nang ma)) hoi. ((lieu van) or (lieu va)) cuu thuc dan thanh tu cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((lang xa) OR (nang ma)) hoi. ((lieu van) OR (lieu va)) cuu thuc dan thanh tu cua te.
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((lang xa) or (nang ma)) hoi. ((lieu van) or (lieu va)) cuu thuc dan thanh tu cua te*.