Perhaps you should try some spelling variations:
nhan thuc » nhan luc, dan thuc, toan thuc
hieu van » hieu va, thien van, lieu va
nam thuc » nam thuoc, am thuc, nam thu
nha quoc » nhap quoc, nhan quoc, nha nuoc
te sach » toc sach
dang xa » dang xay, lang xa, dang ha
dau vai » dau va, dau hai, dau tai
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo
sach 2 » sach y
2 dang » 2 danh, _ dang, b dang
va dau » va dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach 2 dang xa hoi. hieu van ((nam thuc) or (((nhan thuc) or (nha quoc)))) va dau vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach 2 dang xa hoi. hieu van ((nam thuc) OR (((nhan thuc) OR (nha quoc)))) va dau vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sach 2 dang xa hoi. hieu van ((nam thuc) or (((nhan thuc) or (nha quoc)))) va dau vai cuu tre*.