Perhaps you should try some spelling variations:
nganh cong » nhanh chong, thanh cong
soc nganh » hoc nganh, hoc nhanh, cac nganh
van giang » manh giang, tran giang, dan gian
thu sach » tu sach, thuat sach, thuoc sach
sach hoi » sach doi, sach moi, cach thoi
cuu long » cuu cong, cuu tong, cuu nang
long soc » lon soc, luong suc, cong so
cong hoc » dong hoc, cong hoa, cong coc
van gian » dan gian, van giao, van giam
hoi tai » hoc tai, hoi trac
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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach hoi tai, nghien cuu long soc nganh cong hoc xa hai ((van gian) OR (van giang)) dan~".
• Adding a wildcard symbol may retrieve word variants: thu sach hoi tai, nghien cuu long soc nganh cong hoc xa hai ((van gian) OR (van giang)) dan*.