Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
nang mai » nang ma, nang tai, lang mai
minh vai » minh hai, minh ai, minh lai
vien dai » hien dai
te sach » toc sach
duc van » duc va, duc tan, duc manh
minh va » tinh va, sinh va, sinh vat
xuc van » luc van, vuc van, xuc ban
sach ly » sach y, sach lo, sach ty
mai hoi » mai khoi, dai hoi, lai hoi
ly nang » ky nang, ly hang, ly vang
cuu tre » cua tre, cau tren, cau treo

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ly nang mai hoi. hieu vien dai ((xuc van) OR (duc van)) ((minh vai) OR (minh va)) cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ly nang mai hoi. hieu vien dai ((xuc van) or (duc van)) ((minh vai) OR (minh va)) cuu tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ly nang mai hoi. hieu vien dai ((xuc van) or (duc van)) ((minh vai) OR (minh va)) cuu tre*.