Perhaps you should try some spelling variations:
sach thanh » sach tranh, sach tham, danh thanh
dung thin » dung tin, dung thi, dung chien
thanh tri » thanh tra, thanh tai, chinh tri
sac tinh » dac tinh, cac tinh, sat tinh
tinh tri » dinh tri, minh tri, chinh tri
tu sach » thu sach, su sach, te sach
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te sac tinh tri ) or ((( tu sach dung thin ) or ( tu sach thanh tri ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te sac tinh tri ) OR ((( tu sach dung thin ) OR ( tu sach thanh tri )))).
• Adding a wildcard symbol may retrieve word variants: (( te sac tinh tri ) or ((( tu sach dung thin ) or ( tu sach thanh tri ))))*.