Perhaps you should try some spelling variations:
nhin chong » chien chong, nhanh chong, nghia chong
chong hoc » chung hoc, chong doc, thong hoc
sach hoc » cach hoc, mach hoc, sach duoc
sach hoi » sach doi, sach moi, cach thoi
nhan dan » phan dau, gian dan, nhan tai
cuu mot » cua mot, cuu mo, huu mot
va nhan » van nhan, ca nhan, va phan
hoc xa » hoc ma
goc » ngoc

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) OR (sach hoi)) tap, nghien cuu mot goc nhin chong hoc xa hoi va nhan dan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach hoc) OR (sach hoi)) tap, nghien cuu mot goc nhin chong hoc xa hoi va nhan dan".
• Adding a wildcard symbol may retrieve word variants: te ((sach hoc) OR (sach hoi)) tap, nghien cuu mot goc nhin chong hoc xa hoi va nhan dan*.