Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hanh vai » hanh va, hanh tai, hanh van
cam thuc » am thuc, nam thuc, cam thu
thuc va » thuc vat, thuc dan, thuc day
hieu ve » hieu va, hieu van
su sach » so sach, vu sach
vu nang » vuc nang, va nang, vu dang
ma hoi » mai hoi, xa hoi, ma hoa
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam

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 ((y nang) or (vu nang)) ma hoi. hieu ve cam thuc va ((hanh vai) or (hanh vi)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y nang) OR (vu nang)) ma hoi. hieu ve cam thuc va ((hanh vai) OR (hanh vi)) cua viet.
• Adding a wildcard symbol may retrieve word variants: su sach ((y nang) or (vu nang)) ma hoi. hieu ve cam thuc va ((hanh vai) or (hanh vi)) cua viet*.