Perhaps you should try some spelling variations:
hoa doanh » toan doanh, hoa dan
thong hoc » thuong hoc, thong hoa, thong hoi
tuong hoc » truong hoc, tuong ho, duong hoc
sach hoc » cach hoc, sach hoi, mach hoc
cuu cong » cua cong, thu cong, cac cong
cong hoa » dong hoa, dong hoc, hang hoa
te sach » toc sach
va nhan » van nhan, ca nhan, va phan
nhan va » nhan tai, nhan dan, nhan tao

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