Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
thanh vai » thanh hai, thanh van, thanh oai
su triet » su viet, su tien, ve triet
thuy van » thuy san, thuc van, chu van
lang hoa » hang hoa, lang ha, nang hoa
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
te sach » toc sach
le nam » he nam, le na, te nam

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