Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
hoc nhanh » hoc nganh
thu sach » tu sach, thuat sach, thuoc sach
sach hoc » cach hoc, sach hoi, mach hoc
hoc phan » hoc dan, hoc pho
cong tac » cong ty
van tai » von tai, van tuan
tac ma » tac da, tac xa, tac ha
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach hoc tap, nghien cua mot ((hoc nhanh) or (hoc phan)) cong tac ma hoi va van tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach hoc tap, nghien cua mot ((hoc nhanh) OR (hoc phan)) cong tac ma hoi va van tai.
• Adding a wildcard symbol may retrieve word variants: thu sach hoc tap, nghien cua mot ((hoc nhanh) or (hoc phan)) cong tac ma hoi va van tai*.