Perhaps you should try some spelling variations:
nganh nang » nganh nong, ganh nang, ngan hang
hoc nganh » hoc nhanh
sach hoc » cach hoc, sach hoi, mach hoc
cuu dong » cuu cong, cuu tong, cuu long
dong hoc » dong co, dong luc
nang hoc » nang doc, nang luc, hang hoa
te sach » toc sach
hoi cac » hoc cac, voi cac, hoa cac
van tai » von tai, van tuan
hoi ca » hoi cua, hoi cau, hoi va

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 hoc tap, nghien cuu dong hoc nganh nang hoc ma ((hoi ca) OR (hoi cac)) van tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach hoc tap, nghien cuu dong hoc nganh nang hoc ma ((hoi ca) OR (hoi cac)) van tai".
• Adding a wildcard symbol may retrieve word variants: te sach hoc tap, nghien cuu dong hoc nganh nang hoc ma ((hoi ca) OR (hoi cac)) van tai*.