Perhaps you should try some spelling variations:
manh thanh » danh thanh, minh thanh, manh thang
cua triet » cua viet, su triet, va triet
thanh lap » thanh san, phan lap, thanh hai
dang xay » dang van, van xay
duc manh » suc manh, duc anh, duc minh
tu sach » thu sach, su sach, te sach
ty dang » ty xang, ky dang, ty hang
xay hoi » xa hoi, tay hoi, cay phoi
sach ty » sach y, sach tu, sach thu
va nay » va ngay, va cay
cua te » cua tu
va nam » van nam, ha nam

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 dang xay hoi. hieu ((va nam) or (va nay)) duc manh thanh lap ((cua triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty dang xay hoi. hieu ((va nam) OR (va nay)) duc manh thanh lap ((cua triet) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty dang xay hoi. hieu ((va nam) or (va nay)) duc manh thanh lap ((cua triet) or (cua te))*.