Perhaps you should try some spelling variations:
va truyen » hoa truyen, co truyen, di truyen
thi nang » thi cong, ki nang, thi hanh
va trien » va thiet, va tuyen, va tieng
dan hanh » dang hanh, dan khanh, dan thanh
thuc dan » thuc hanh, hoc dan, thuc vat
nang nam » dang nam, hang nam, nang lam
nam thuc » nam thuoc, am thuc, nam thu
thu sach » thuat sach, thuoc sach, thu hoach
nang xa » nang x, lang xa, nang ma
hanh di » hanh vi, hanh de, hang di
tu sach » su sach, te sach, tu cach
y nang » ky nang, ly nang, v nang

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