Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
phan xuong » phan cong
bach khong » bach khang, bach phuong, bach khoa
sach thai » sach tham, sac thai, sach tai
thai thuc » thai thuy, thai tuc, tham thuc
thuc hang » thuc hanh, thu hang, phuc hang
tham truc » tham thuc, nham thuc, pham thuc
khong pho » khong kho, khong phai, khong khoa
pho thong » he thong
goc tham » goc kham, ngoc them, hoac tham
hang co » hang cho, hang ca, nang co
tu goc » tu hoc

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 thai thuc hang co phan xuong ) or ( tu goc tham truc bach khong pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thuat sach thai thuc hang co phan xuong ) OR ( tu goc tham truc bach khong pho thong )).
• Adding a wildcard symbol may retrieve word variants: (( thuat sach thai thuc hang co phan xuong ) or ( tu goc tham truc bach khong pho thong ))*.