Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
nang tao » nang cao, sang tao, nang tai
thanh vi » hanh vi, thanh va, thanh ve
pham duy » pham duc
bo sach » co sach, hoc sach
tao hoi » tao khoi, tao boi, tay hoi
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
duy ban » uy ban, duy van, duy can
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((tu cach) OR (tu cac))) or (bo sach)) ky nang tao hoi. hieu ve pham duy ban thanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu cach) OR (tu cac))) OR (bo sach)) ky nang tao hoi. hieu ve pham duy ban thanh vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((tu cach) OR (tu cac))) or (bo sach)) ky nang tao hoi. hieu ve pham duy ban thanh vi cua triet".
• Adding a wildcard symbol may retrieve word variants: ((((tu cach) OR (tu cac))) or (bo sach)) ky nang tao hoi. hieu ve pham duy ban thanh vi cua triet*.