Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cau triet » cau trieu, su triet, va triet
thanh lai » thanh hai, thanh lap, thanh loi
va thanh » gia thanh, ban thanh, va tinh
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
su sac » su sach, su cac, su xac
ve cac » vien cac
sac ky » cac ky, sai ky
ha hoi » hoa hoi, ha noi, xa hoi

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 lang ha hoi. hieu ((ve cac) or (va cac)) duc va thanh lai ((cau triet) OR (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky lang ha hoi. hieu ((ve cac) OR (va cac)) duc va thanh lai ((cau triet) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky lang ha hoi. hieu ((ve cac) or (va cac)) duc va thanh lai ((cau triet) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: su sac ky lang ha hoi. hieu ((ve cac) or (va cac)) duc va thanh lai ((cau triet) OR (cua triet))*.