Perhaps you should try some spelling variations:
doc sach » hoc sach, toc sach, nuoc sach
hieu sat » hieu suat, hieu sau, hieu bat
sat phan » sat nhan, vat phan, xuat phan
phan dau » phan tu, hang dau
va triet » va thiet, va trien, ve triet
lang xa » lang ha, dang xay, lang van
dau van » dao van, dam van, dau va
van anh » van thanh, tuan anh, van minh
y lang » o lang, _ lang, tay lang
anh vi » hanh vi, anh va, anh ve
vi va » vi van, vai va, vu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sach y lang xa hoi. hieu sat phan dau van anh vi va triet~.
• Adding a wildcard symbol may retrieve word variants: doc sach y lang xa hoi. hieu sat phan dau van anh vi va triet*.