Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
cua triet » su triet, va triet
cua viet » ca viet, hoa viet, cua vat
va thanh » gia thanh, ban thanh, va tinh
ky dang » ky nang, ky danh
dang ha » dong ha, dung ha, lang ha
hieu ve » hieu va, hieu van
cac duc » cao duc, cac dac, cac nuoc
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky dang ha noi. hieu ve ((cac duc) or (cac du)) va thanh lai ((cua triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky dang ha noi. hieu ve ((cac duc) OR (cac du)) va thanh lai ((cua triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: su sac ky dang ha noi. hieu ve ((cac duc) or (cac du)) va thanh lai ((cua triet) or (cua viet))*.