Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
va triet » va thiet, va trien, ve triet
va thanh » gia thanh, ban thanh, va tinh
hieu van » hieu va, thien van, lieu va
thi hanh » thi thanh
toc sach » hoc sach, doc sach, thuoc sach
hanh xa » hanh va, hanh ma, hanh xu
nam tuc » nam thuc, nam truc, nam thuoc
tu sach » thu sach, su sach, te sach
nam tu » nam thu, nam thuc
lap va » tap va

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