Perhaps you should try some spelling variations:
nhoc nhan » ngoc nhan, nhac nhan, thuoc nhan
thong hoc » thuong hoc, tuong hoc, thong hoa
lai doanh » lap doanh, luat doanh, trai doanh
sach doi » sach hoi, sach moi, sach dao
cuu cong » cua cong, thu cong, cac cong
hoc nhan » hoc nhanh, hoc phan, hoc chan
nhan tai » hang tai, van tai, toan tai
su sach » so sach, vu sach
doi tap » doi tac, doi dap, doi tai
hoc xa » hoc ma
xa lai » xa dai, xa la, va lai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: su sach doi tap, nghien cuu cong ((nhoc nhan) OR (hoc nhan)) thong hoc xa lai doanh nhan tai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach doi tap, nghien cuu cong ((nhoc nhan) OR (hoc nhan)) thong hoc xa lai doanh nhan tai".
• Adding a wildcard symbol may retrieve word variants: su sach doi tap, nghien cuu cong ((nhoc nhan) OR (hoc nhan)) thong hoc xa lai doanh nhan tai*.