Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
thuy van » thuy san, chu van, thuy anh
thuc van » thuc vat, thuc dan, thuc va
tuan de » tuan le, luan de, toan de
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve nam » he nam, va nam, le nam

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. hieu ve nam ((thuy van) or (thuc van)) tuan de ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang xa hoi. hieu ve nam ((thuy van) OR (thuc van)) tuan de ((cua triet) OR (va triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang xa hoi. hieu ve nam ((thuy van) or (thuc van)) tuan de ((cua triet) OR (va triet))*".