Perhaps you should try some spelling variations:
phap thong » phap phong, phap chong, phap tieng
sach tham » sach nha
tham thuc » nham thuc, pham thuc, tam thuc
thuc bach » truc bach, thuc cach, thuoc sach
bach khoa » anh khoa
khoa phap » khoa phau, khoan phai, khong phap
sach thai » sac thai, sach tai, sach nha
thai thuc » thai thuy, thai tuc, thi thuc
thuc lanh » thuc hanh, thuat lanh, thuc thanh
pho thong » he thong
thu sach » tu sach, thuat sach, thuoc sach
te sach » toc sach
dao pho » dao ho, dan pho, dao phu

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te sach tham thuc bach khoa phap thong ) or ( thu sach thai thuc lanh dao pho thong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sach tham thuc bach khoa phap thong ) OR ( thu sach thai thuc lanh dao pho thong )).
• Adding a wildcard symbol may retrieve word variants: (( te sach tham thuc bach khoa phap thong ) or ( thu sach thai thuc lanh dao pho thong ))*.