Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
su sach » vu sach
so sach » so sanh, bo sach, co sach
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
anh tri » anh thi, anh tai, thanh tri

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) OR (so sach)) ty nang xa hoi. hieu ve chat ((xuc van) or (duc van)) anh tri cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ty nang xa hoi. hieu ve chat ((xuc van) OR (duc van)) anh tri cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ty nang xa hoi. hieu ve chat ((xuc van) or (duc van)) anh tri cua triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ty nang xa hoi. hieu ve chat ((xuc van) or (duc van)) anh tri cua triet*.