Perhaps you should try some spelling variations:
vach tran » sach tranh, hach toan, sach tren
sach tran » sach tranh, sach tren, sach tham
tran tri » trang tri, trang trai, trang tai
tren tri » trien tri, tien tri, trang tri
tren thi » trien thi, trieu thi, trinh thi
te sach » toc sach
te vach » e vach, ke vach
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: (((( te sach tran tri ) or ( te vach tran thi ))) or ( tu sach ((tren tri) OR (tren thi)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( te sach tran tri ) OR ( te vach tran thi ))) OR ( tu sach ((tren tri) OR (tren thi)) )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( te sach tran tri ) or ( te vach tran thi ))) or ( tu sach ((tren tri) OR (tren thi)) ))".
• Adding a wildcard symbol may retrieve word variants: (((( te sach tran tri ) or ( te vach tran thi ))) or ( tu sach ((tren tri) OR (tren thi)) ))*.