Perhaps you should try some spelling variations:
khang thuoc » khong thuoc, dang thuoc, hanh thuoc
nhanh khang » nhanh thang, nhanh quang, nhanh thanh
nghien cac » nghiep cach, nghien cuu, nghiep cay
hoc nhanh » hoc nganh, hoc phan
phan van » pham van, thanh van, luan van
cua phan » cua nhan, cua phap, cua han
thuoc xa » thuoc ma, thuoc va, thuoc la
cac cong » cua cong
cong hoc » dong hoc, cong hoa, cong coc
sach hoc » cach hoc, mach hoc, sach duoc
sach hoi » sach doi, sach moi, cach thoi
hoi cua » hoi chuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach hoc) OR (sach hoi)) tap, nghien cac cong hoc nhanh khang thuoc xa hoi cua phan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach hoc) OR (sach hoi)) tap, nghien cac cong hoc nhanh khang thuoc xa hoi cua phan van".
• Adding a wildcard symbol may retrieve word variants: tu ((sach hoc) OR (sach hoi)) tap, nghien cac cong hoc nhanh khang thuoc xa hoi cua phan van*.