Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, thanh san
cua triet » cua viet, su triet, va triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac cuc » cac cuoc, cac cua, cac nuoc
cuc ban » cua ban, cac ban, cuu ban
ve cac » va cac, vien cac

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 xa hoi. hieu ve cac cuc ban ((thanh tai) or (doanh tai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu ve cac cuc ban ((thanh tai) OR (doanh tai)) cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu ve cac cuc ban ((thanh tai) or (doanh tai)) cua triet*.