Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
thi nang » thi cong, ki nang, thi hanh
dan hanh » dang hanh, dan khanh, dan thanh
thuc dan » thuc hanh, hoc dan, thuc vat
lam thuc » lam thuoc, am thuc, nam thuc
nang lam » nong lam, bang lam, mang lam
dang xay » dang van, van xay
hanh di » hanh vi, hanh de, hang di
tu sach » thu sach, su sach, te sach
lang xa » lang ha, lang van
nang xa » nang x, nang ma, mang xa
di va » dai va, di vao, doi va

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: tu sach y ((nang xa) OR (((lang xa) OR (dang xay)))) hoi. thi nang lam thuc dan hanh di va trien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((nang xa) or (((lang xa) OR (dang xay)))) hoi. thi nang lam thuc dan hanh di va trien~".
• Adding a wildcard symbol may retrieve word variants: tu sach y ((nang xa) or (((lang xa) OR (dang xay)))) hoi. thi nang lam thuc dan hanh di va trien*.