Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
thuc gia » thuc giai, thue gia, thuc dia
thang va » trang va, thong va, thanh va
va triet » va trien, ve triet, cua triet
nang xa » nang x, lang xa, nang ma
va tham » van tham, va cham, va thanh
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
thiet » thieu

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 nang xa hoi. lieu va tham thuc gia ((thang va) or (hang va)) ((va triet) OR (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. lieu va tham thuc gia ((thang va) OR (hang va)) ((va triet) OR (va thiet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. lieu va tham thuc gia ((thang va) or (hang va)) ((va triet) OR (va thiet))".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang xa hoi. lieu va tham thuc gia ((thang va) or (hang va)) ((va triet) OR (va thiet))*.