Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
cua viet » ca viet, hoa viet, cua vat
kho tang » cao tang
va thanh » gia thanh, ban thanh, va tinh
vai cua » dai cua, hai cua, lai cua
thuc va » thuc vat, thuc dan, thuc day
hieu ve » hieu va, hieu van
su sach » vu sach
ky tang » ky nang, ky dang, ky trong
so sach » so sanh, bo sach, co sach
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: ((su sach) or (so sach)) ((ky tang) or (kho tang)) xa hoi. hieu ve am thuc va thanh vai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ((ky tang) OR (kho tang)) xa hoi. hieu ve am thuc va thanh vai cua viet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) ((ky tang) or (kho tang)) xa hoi. hieu ve am thuc va thanh vai cua viet*.