Perhaps you should try some spelling variations:
danh thanh » dinh thanh, dang thanh, nhanh thanh
cua triet » cua viet, su triet, va triet
thanh vai » thanh hai, thanh van, thanh tai
cac cuoc » cac nuoc, ca cuoc, cac quoc
cua tre » cua te, cuu tre, dua tren
tu sach » thu sach, su sach, te sach
cac suc » cao suc, cac nuoc, cac quoc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang

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 y nang xa hoi. hieu ve ((cac suc) or (cac cuoc)) danh thanh vai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu ve ((cac suc) OR (cac cuoc)) danh thanh vai ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu ve ((cac suc) or (cac cuoc)) danh thanh vai ((cua tre) or (cua triet))*.