Perhaps you should try some spelling variations:
thanh lap » thanh san, thanh hai, thanh van
cua triet » cua viet, su triet, va triet
phan lap » phan dau
cau theo » cau thi, cau tao
hieu va » lieu va, hieu qua
cac toc » cac toi, cac nuoc, cac thoi
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
tu sach » thu sach, su sach, te sach
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 ty nang x hoi. hieu va cac toc va ((thanh lap) OR (phan lap)) ((cua triet) or (cau theo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang x hoi. hieu va cac toc va ((thanh lap) OR (phan lap)) ((cua triet) OR (cau theo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang x hoi. hieu va cac toc va ((thanh lap) OR (phan lap)) ((cua triet) or (cau theo))".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang x hoi. hieu va cac toc va ((thanh lap) OR (phan lap)) ((cua triet) or (cau theo))*.