Perhaps you should try some spelling variations:
day thanh » dao thanh, dat thanh, da thanh
thanh vi » hanh vi, thanh va, thanh ve
thuc day » thuc dan, thuc vat
cac thuc » cach thuc, cac thu, can thuc
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
te sach » toc sach
vi cua » vai cua, di 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: ((su sach) or (te sach)) ky lang xa hoi. ((hieu ve) or (lieu va)) cac thuc day thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (te sach)) ky lang xa hoi. ((hieu ve) OR (lieu va)) cac thuc day thanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (te sach)) ky lang xa hoi. ((hieu ve) or (lieu va)) cac thuc day thanh vi cua te*.