Perhaps you should try some spelling variations:
can thanh » ban thanh, cac thanh, can tranh
van thanh » ban thanh, van tuan
va triet » va thiet, va trien, ve triet
pham duy » pham duc
nang tao » nang cao, sang tao, nang tai
tu cach » tu cac
tao hoi » tao khoi, tao boi, tay hoi
bo sach » co sach, hoc sach
hieu vi » hieu voi, hieu va, hieu ve
vi va » vi van, vai va, vu va

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