Perhaps you should try some spelling variations:
sach treng » sach tranh, sach tien, mach trung
sach thamh » sach tham, sach tranh
treng trai » trang trai, truong trai, trang tri
sach tren » sach tien, sach tranh
thamh tri » thanh tri, tham tri, thanh tra
tren tri » trien tri, tren thi, tran tri
toc sach » hoc sach, doc sach, thuoc sach
tu sach » thu sach, su sach, tu cach

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 tren tri ) or ( te sach thamh tri ))) or ( toc sach treng trai ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( tu sach tren tri ) OR ( te sach thamh tri ))) OR ( toc sach treng trai )).
• Adding a wildcard symbol may retrieve word variants: (((( tu sach tren tri ) or ( te sach thamh tri ))) or ( toc sach treng trai ))*.