Perhaps you should try some spelling variations:
va trien » va truyen, va thiet, va tuyen
hieu va » lieu va, hieu qua
va nhan » van nhan, ca nhan, va phan
luc van » luoc van, duc van, luc va
luu van » cuu van, luan van, luu hanh
su viet » so viet
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang x hoi. hieu va nhan ((luc van) or (luu van)) hanh vi ((va trien) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang x hoi. hieu va nhan ((luc van) OR (luu van)) hanh vi ((va trien) OR (su viet)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang x hoi. hieu va nhan ((luc van) or (luu van)) hanh vi ((va trien) or (su viet))*.