Perhaps you should try some spelling variations:
nguoi lang » nguoi lanh, nguoi giang, nguoi nung
thuoc cach » thuoc sach, thuc cach, truoc cach
tac nguoi » toc nguoi, tay nguoi, thuc nguoi
lang nghe » cong nghe, van nghe
cho thong » cho thuong, cho trong, cho tuong
cao thuoc » cay thuoc, cua thuoc, nam thuoc
cach khoa » bach khoa, cac khoa, cac khoan
pho thong » he thong
sach tac » sach bac, sach tai, sach tham
nghe cho » nghe che, nghe co, nghe cao
sach cao » sach dao, sach cap, mach cao
khoa pho » khoa phu, khoa khoa, khoa phau
tu sach » thu sach, su sach, te sach

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 tac nguoi lang nghe cho thong ) or ( tu sach cao thuoc cach khoa pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach tac nguoi lang nghe cho thong ) OR ( tu sach cao thuoc cach khoa pho thong ))*.