Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
thu sach » thuat sach, thuoc sach, thu hoach
danh vai » danh sai, danh va, doanh van
su triet » su viet, su tien, ve triet
ty hang » ly hang, ty xang, thi hang
hang xa » hoang xa, hang va, hang ca
va danh » va dinh, va dan, va hanh
tu sach » su sach, te sach, tu cach
qua cau » quan cau, qua cac, qua ca
cau tu » dau tu, cau truc

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (tu sach)) ty hang xa hoi. hieu qua cau tu va danh vai ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ty hang xa hoi. hieu qua cau tu va danh vai ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (tu sach)) ty hang xa hoi. hieu qua cau tu va danh vai ((cua triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (tu sach)) ty hang xa hoi. hieu qua cau tu va danh vai ((cua triet) OR (su triet))*.