Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
truoc cach » cuoc cach, truoc cang
phap phong » hai phong, phap phan
sach tren » sach tien, sach tranh
thuc cach » thuoc sach, thuc hanh, tuc cac
phu thong » phap thong, khau thong, phan thong
pho thong » he thong

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 tren ((truoc cach) OR (thuc cach)) khoa ((((phu thong) or (pho thong))) or (phap phong))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach tren ((truoc cach) OR (thuc cach)) khoa ((((phu thong) OR (pho thong))) OR (phap phong)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach tren ((truoc cach) OR (thuc cach)) khoa ((((phu thong) or (pho thong))) or (phap phong))".
• Adding a wildcard symbol may retrieve word variants: thuat sach tren ((truoc cach) OR (thuc cach)) khoa ((((phu thong) or (pho thong))) or (phap phong))*.