Perhaps you should try some spelling variations:
thu thanh » thu thang, tu thanh, thuan thanh
thuy hanh » thuc hanh, thuy anh, thuy canh
van hanh » van thanh, ban hanh, van anh
hanh lam » thanh lap, hanh kem, hanh va
va triet » va thiet, va trien, ve triet
te sach » toc sach
hieu ve » hieu va, hieu van
cac duc » cac du, cao duc, cac dac
duc van » duc va, duc tan, duc manh
ve cac » va cac, vien cac
lam va » nam va, dam va, lam ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((thu thanh) or (thuy hanh)) xa hoi. hieu ve cac duc van hanh lam va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((thu thanh) OR (thuy hanh)) xa hoi. hieu ve cac duc van hanh lam va triet.
• Adding a wildcard symbol may retrieve word variants: te sach ((thu thanh) or (thuy hanh)) xa hoi. hieu ve cac duc van hanh lam va triet*.