Perhaps you should try some spelling variations:
manh thanh » danh thanh, minh thanh, manh thang
thanh lap » thanh san, phan lap, thanh hai
lieu ban » lieu bai, dieu ban, lieu van
phap duc » pham duc, phan duc, phap doc
duc manh » suc manh, duc anh, duc minh
cua tre » cuu tre, cua triet, dua tren
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
xay hoi » tay hoi, cay phoi, gay thoi
ty dang » ty xang, ky dang, ty hang
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: su sach ty dang ((xay hoi) OR (xa hoi)). lieu ban phap duc manh thanh lap ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty dang ((xay hoi) OR (xa hoi)). lieu ban phap duc manh thanh lap ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty dang ((xay hoi) OR (xa hoi)). lieu ban phap duc manh thanh lap ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: su sach ty dang ((xay hoi) OR (xa hoi)). lieu ban phap duc manh thanh lap ((cua tre) or (cua te))*.