Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
khanh van » thanh van, khanh vinh, hanh va
cua triet » cua viet, su triet, va triet
bo sach » co sach, hoc sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac
cac lo » cac lop, cac co, cac bo
lo van » le van, vo van, so van

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach y nang xa hoi. hieu ve cac lo van ((((thanh tai) or (khanh van))) or (hanh vi)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach y nang xa hoi. hieu ve cac lo van ((((thanh tai) OR (khanh van))) OR (hanh vi)) cua triet.
• Adding a wildcard symbol may retrieve word variants: bo sach y nang xa hoi. hieu ve cac lo van ((((thanh tai) or (khanh van))) or (hanh vi)) cua triet*.