Perhaps you should try some spelling variations:
thi hanh » thi thanh
nam thuc » nam thuoc, am thuc, nam thu
va thanh » gia thanh, ban thanh, va tinh
thanh la » thanh lap, thanh lam, thanh lan
ve triet » va trien, su triet
tu sach » thu sach, su sach, tu cach
te sach » toc sach
hanh xa » hanh va, hanh ma, hanh xu
hieu he » hieu ve, hiem he, hieu le
thuc va » thuc vat, thuc dan, thuc day
he nam » ha nam, nghe nam
la ve » ly ve, ca ve, va ve

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 (te sach)) thi hanh xa hoi. hieu he nam thuc va thanh la ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) thi hanh xa hoi. hieu he nam thuc va thanh la ve triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) thi hanh xa hoi. hieu he nam thuc va thanh la ve triet*.