Perhaps you should try some spelling variations:
nhanh chong » thanh cong
sach hoc » cach hoc, sach hoi, mach hoc
cuu dong » cuu cong, cuu tong, cuu long
dong luc » nang luc
nhan van » nhan dan, nhan va, phan van
te sach » toc sach
va nhan » van nhan, ca nhan, va phan
do xa » doi xa, do va, o xa

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 luc ((nhanh chong) OR (khanh phong)) do xa hoi va nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach hoc tap, nghien cuu dong luc ((nhanh chong) OR (khanh phong)) do xa hoi va nhan van".
• Adding a wildcard symbol may retrieve word variants: te sach hoc tap, nghien cuu dong luc ((nhanh chong) OR (khanh phong)) do xa hoi va nhan van*.