Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty lang » tay lang, ty xang, ty hang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cau xuc » cam xuc, cau luc, cau truc
va hanh » van hanh, va thanh, va danh
van anh » van thanh, van minh
va cau » van cau, va cac, va dau
ki su » ky su
tuan » quan, tran, luan

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 ty lang xa hoi. hieu va cau xuc ((va hanh) or (((van anh) OR (tuan anh)))) ki su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty lang xa hoi. hieu va cau xuc ((va hanh) OR (((van anh) OR (tuan anh)))) ki su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty lang xa hoi. hieu va cau xuc ((va hanh) or (((van anh) OR (tuan anh)))) ki su triet".
• Adding a wildcard symbol may retrieve word variants: te sach ty lang xa hoi. hieu va cau xuc ((va hanh) or (((van anh) OR (tuan anh)))) ki su triet*.