Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hoan thanh » hoang thanh, ban thanh, van thanh
hoc thanh » hoc nhanh, hoc phan, ha thanh
sach doi » sach hoi, sach moi, sach dao
hoc benh » soc benh, hoc kinh, so benh
nhan dan » phan dau, gian dan, nhan tai
doi tai » hoi tai, dai tai, doi tac
cuu mon » cuu mo, cuu mot, cuu cong
hoc xa » hoc ma
xa hoc » xa hoi, va hoc, xa hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach doi tai, nghien cuu mon ((hoc thanh) or (hoan thanh)) hoa hoc xa hoc benh nhan dan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach doi tai, nghien cuu mon ((hoc thanh) OR (hoan thanh)) hoa hoc xa hoc benh nhan dan.
• Adding a wildcard symbol may retrieve word variants: thuat sach doi tai, nghien cuu mon ((hoc thanh) or (hoan thanh)) hoa hoc xa hoc benh nhan dan*.