Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
nganh nong » nganh cong
sach hoc » cach hoc, sach hoi, mach hoc
phap van » pham van, phan van, phap han
tu sach » thu sach, su sach, te sach
va phap » va phat, ban phap
cuu co » huu co, cua co, cuu mo
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 hoc tap, nghien cuu co hoc ((nganh nong) or (nhanh chong)) hoc xa hoi va phap van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach hoc tap, nghien cuu co hoc ((nganh nong) OR (nhanh chong)) hoc xa hoi va phap van.
• Adding a wildcard symbol may retrieve word variants: tu sach hoc tap, nghien cuu co hoc ((nganh nong) or (nhanh chong)) hoc xa hoi va phap van*.