Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thuc dan » thuc hanh, hoc dan, thuc vat
hanh dao » thanh dat, thanh dam, doanh dao
hanh dai » hanh tai, vanh dai, thanh dat
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
vu sach » vu bach, su sach, vu khach
ve am » va am

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky tang xa hoi. hieu ve am thuc dan ((hanh dai) or (((hanh dao) OR (lanh dao)))) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky tang xa hoi. hieu ve am thuc dan ((hanh dai) OR (((hanh dao) OR (lanh dao)))) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky tang xa hoi. hieu ve am thuc dan ((hanh dai) or (((hanh dao) OR (lanh dao)))) cua triet*".