Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh lam » thanh lap, hanh lam, thanh nam
cua triet » cua viet, su triet, va triet
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
hieu ve » hieu van
hieu va » lieu va, hieu qua
lam cua » nam cua, lam chat
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ha hoi » hoa hoi, ha noi, xa hoi
cac su » cach su, cac sau, cac du
su ban » su bang, tu ban, vu ban

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) or (hieu va)) cac su ban thanh lam cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky lang ha hoi. ((hieu ve) OR (hieu va)) cac su ban thanh lam cua triet.
• Adding a wildcard symbol may retrieve word variants: su sac ky lang ha hoi. ((hieu ve) or (hieu va)) cac su ban thanh lam cua triet*.