Perhaps you should try some spelling variations:
danh sai » dung sai, danh bat, danh dau
su triet » su viet, su tien, ve triet
sach ky » sac ky, sach ty, sach kem
dang xa » dang xay, lang xa, dang ha
hieu va » lieu va, hieu qua
cac tru » ca tru, cac tro, cac thu
va danh » va dinh, va dan, va hanh
tru va » truc va, tu va, trung va
cua te » cua tu

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) OR (sach y)) dang xa hoi. hieu va cac tru va danh sai ((su triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sach y)) dang xa hoi. hieu va cac tru va danh sai ((su triet) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sach y)) dang xa hoi. hieu va cac tru va danh sai ((su triet) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) OR (sach y)) dang xa hoi. hieu va cac tru va danh sai ((su triet) or (cua te))*.