Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
thanh tai » thanh toan, doanh tai, thanh san
su triet » su viet, su tien, ve triet
sach ky » sac ky, sach y, sach ty
thu van » thuc van, thuy van, tu van
te sach » toc sach
hieu le » hieu ve, hieu he, tieu le
lang ha » long ha
ky lang » ky nang, ky dang, ky tang
hieu ly » hieu ky, lieu ly, dieu ly
ha hoi » hoa hoi, ha noi, xa hoi

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 ky lang ha hoi. ((hieu le) or (hieu ly)) nam thu van ((thanh tai) OR (thanh hai)) su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky lang ha hoi. ((hieu le) OR (hieu ly)) nam thu van ((thanh tai) OR (thanh hai)) su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky lang ha hoi. ((hieu le) or (hieu ly)) nam thu van ((thanh tai) OR (thanh hai)) su triet".
• Adding a wildcard symbol may retrieve word variants: te sach ky lang ha hoi. ((hieu le) or (hieu ly)) nam thu van ((thanh tai) OR (thanh hai)) su triet*.