Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
cua triet » su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
cua viet » ca viet, hoa viet, cua vat
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang ma » tang ma, sang ma, nang cao
cac loc » cac lop, cac toc, cac hoc
ma hoi » mai hoi, xa hoi, ma hoa
loc va » hoc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ty nang ma hoi. lieu va cac loc va thanh vai ((cua triet) OR (cua viet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang ma hoi. lieu va cac loc va thanh vai ((cua triet) OR (cua viet))".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang ma hoi. lieu va cac loc va thanh vai ((cua triet) OR (cua viet))*.