Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thanh lap » thanh san, phan lap, thanh hai
cau theo » cau thi, cau tao
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, te sach, tu cach
hieu va » lieu va, hieu qua
ty nang » ky nang, ty xang, ty hang
su sach » so sach, vu sach
cac toc » cac toi, cac nuoc, cac thoi
toc va » hoc va, toc ta, tuc va
x hoi » xa hoi, o hoi, x ho

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

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