Perhaps you should try some spelling variations:
nang mai » nang ma, nang tai, lang mai
mai khoi » mai khoa, tai khoa, cac khoi
vat dang » van dang, vat dung, va dang
dang de » dang deo, dung de, dang do
cua tre » cua te, cuu tre, cua triet
vu ban » tu ban, va ban
ban ky » van ky, dan ky
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ban ky nang mai khoi. hieu ((ve cam) or (ve cac)) thuc vat dang de cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ban ky nang mai khoi. hieu ((ve cam) OR (ve cac)) thuc vat dang de cua tre*.