Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
su canh » suc canh, su anh, luc canh
hieu ve » hieu va, hieu van
su can » su van, su cao, tu can
nang o » nang co, nang ho, nang ro
ve cac » va cac, vien cac
o hoi » co hoi, o hoc, o hai
du va » dau va, tu va, su va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su can) or (su canh)) ky nang o hoi. hieu ve cac du va thanh dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su can) OR (su canh)) ky nang o hoi. hieu ve cac du va thanh dai cua triet*.