Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
nuoc gia » nuoc giai, nuoc giao, quoc gia
su triet » su viet, su tien, ve triet
va triet » va thiet, va trien, ve triet
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hieu ve » hieu va, hieu van
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho

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 ty nang x hoi. hieu ve cac nuoc gia thanh vai ((su triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang x hoi. hieu ve cac nuoc gia thanh vai ((su triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: te sach ty nang x hoi. hieu ve cac nuoc gia thanh vai ((su triet) or (va triet))*.