Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
soc nganh » hoc nganh, hoc nhanh, cac nganh
thu sach » tu sach, thuat sach, thuoc sach
sach hoi » sach doi, sach moi, cach thoi
cuu long » cuu tong, cuu nang
cuu cong » cua cong, thu cong, cac cong
cong hoc » dong hoc, cong hoa, cong coc
van gian » van giang, dan gian, van giao
gian dan » gian lang
hai van » thai van, ha van, hai tan
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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 hoi trac, nghien ((cuu long) or (cuu cong)) soc nganh cong hoc xa hai van gian dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach hoi trac, nghien ((cuu long) OR (cuu cong)) soc nganh cong hoc xa hai van gian dan.
• Adding a wildcard symbol may retrieve word variants: thu sach hoi trac, nghien ((cuu long) or (cuu cong)) soc nganh cong hoc xa hai van gian dan*.