Perhaps you should try some spelling variations:
hoc nhanh » hoc nganh, hoc phan
nhanh hoa » nhanh hoan, thanh hoa, khanh hoa
sach hoi » sach doi, sach moi, cach thoi
cuu cong » cua cong, cac cong
van nhan » van phan, van thanh, danh nhan
nhan dan » phan dau, gian dan, nhan tai
te sach » toc sach
hoi tai » hoc tai, hoi trac
hoi van » hoi va, hoi dan, hai van
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: te sach hoi tai, nghien ((cuu cong) or (thu cong)) hoc nhanh hoa hoc xa hoi van nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoi tai, nghien ((cuu cong) OR (thu cong)) hoc nhanh hoa hoc xa hoi van nhan dan.
• Adding a wildcard symbol may retrieve word variants: te sach hoi tai, nghien ((cuu cong) or (thu cong)) hoc nhanh hoa hoc xa hoi van nhan dan*.