Perhaps you should try some spelling variations:
nganh khong » nganh cong, nhanh chong, nganh nong
sach tong » sach song, sach rong, sach thuong
goc nganh » hoc nganh, hoc nhanh, cac nganh
khong hoc » khung hoc, thong hoc, khong thuoc
tong tap » tuong tac, trong tan, cong tac
phat van » pham van, phan van, phap van
tu sach » thu sach, su sach, te sach
cuu mot » cuu mo, huu mot, cuu vuot
hoc xa » hoc ma

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 tong tap, nghien ((cuu mot) or (cua mot)) goc nganh khong hoc xa hoi va phat van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach tong tap, nghien ((cuu mot) OR (cua mot)) goc nganh khong hoc xa hoi va phat van.
• Adding a wildcard symbol may retrieve word variants: tu sach tong tap, nghien ((cuu mot) or (cua mot)) goc nganh khong hoc xa hoi va phat van*.