Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thu hoach
hanh tri » thanh tri, hanh tai, hanh trinh
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac duc » cac du, cao duc, cac dac
va hanh » van hanh, va thanh, va danh
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: ((te sach) or (((thu sach) OR (thuoc sach)))) ky nang xa hoi. hieu ve cac duc va hanh tri cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (((thu sach) OR (thuoc sach)))) ky nang xa hoi. hieu ve cac duc va hanh tri cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (((thu sach) OR (thuoc sach)))) ky nang xa hoi. hieu ve cac duc va hanh tri cua triet".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (((thu sach) OR (thuoc sach)))) ky nang xa hoi. hieu ve cac duc va hanh tri cua triet*.