Perhaps you should try some spelling variations:
nang mai » nang ma, nang tai, lang mai
mai khoi » mai khoa, tai khoa, cac khoi
va thanh » gia thanh, ban thanh, va tinh
hai cua » thai cua, dai cua, hoi cua
vai cua » dai cua, lai cua, bai cua
thuc va » thuc vat, thuc dan, thuc day
bo sach » co sach, hoc sach
ve cham » va cham, ve chat, vu cham
sach v » sach va, sach y, sach 2
ve cam » ve cac, va cam, ve cai
v nang » va nang, vu nang, van nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach v nang mai khoi. hieu ((ve cam) OR (ve cham)) thuc va thanh ((vai cua) or (hai cua)) viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach v nang mai khoi. hieu ((ve cam) OR (ve cham)) thuc va thanh ((vai cua) OR (hai cua)) viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach v nang mai khoi. hieu ((ve cam) OR (ve cham)) thuc va thanh ((vai cua) or (hai cua)) viet".
• Adding a wildcard symbol may retrieve word variants: bo sach v nang mai khoi. hieu ((ve cam) OR (ve cham)) thuc va thanh ((vai cua) or (hai cua)) viet*.