Perhaps you should try some spelling variations:
manh thanh » danh thanh, minh thanh, manh thang
qua pham » quan pham, quy pham, qua cham
duc manh » suc manh, duc anh, duc minh
thanh ha » thanh hoa, thanh hai, nhanh ha
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
cua tre » cuu tre, cua triet, dua tren
cua te » cua tu
x hoi » xa hoi, x ho, 5 hoi
o hoi » co hoi, o hoc, o hai

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 ky nang ((x hoi) OR (o hoi)). hieu qua pham duc manh thanh ha ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((x hoi) OR (o hoi)). hieu qua pham duc manh thanh ha ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang ((x hoi) OR (o hoi)). hieu qua pham duc manh thanh ha ((cua tre) or (cua te))*".