Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
va trien » va truyen, va tuyen, va tieng
ve triet » su triet
va thanh » gia thanh, ban thanh, va tinh
kho tang » cao tang
hieu va » lieu va, hieu qua
cao hoc » co hoc, cho hoc, chat hoc
xac kho » cac khoi, dac khoa, cac khoa
tang xa » trang xa, tang ma, lang xa
va cao » va cac, va co, va dao
su xac » pu xac, su cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: su xac kho tang xa hoi. hieu va cao hoc va thanh vai ((va thiet) or (((ve triet) or (va trien))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac kho tang xa hoi. hieu va cao hoc va thanh vai ((va thiet) OR (((ve triet) OR (va trien)))).
• Adding a wildcard symbol may retrieve word variants: su xac kho tang xa hoi. hieu va cao hoc va thanh vai ((va thiet) or (((ve triet) or (va trien))))*.