Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
thanh hoi » thanh hoai, thanh hoa, thanh loi
cua triet » cua viet, su triet, va triet
hieu ve » hieu va, hieu van
cac tuc » cac toc, cac tu, cac tac
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
ve cac » va cac, vien cac
tuc va » thuc va, truc va, tuc xa
x hoi » xa hoi, o hoi, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang ((x hoi) OR (x ho)). hieu ve cac tuc va ((thanh hoi) or (thanh hai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang ((x hoi) OR (x ho)). hieu ve cac tuc va ((thanh hoi) OR (thanh hai)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang ((x hoi) OR (x ho)). hieu ve cac tuc va ((thanh hoi) or (thanh hai)) cua triet".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang ((x hoi) OR (x ho)). hieu ve cac tuc va ((thanh hoi) or (thanh hai)) cua triet*.