Perhaps you should try some spelling variations:
phan luoc » phan quoc, phan duoc, phan nuoc
luoc van » luoc can, luoc va, luc van
van hanh » van thanh, ban hanh, van anh
ve triet » va trien
su triet » su viet, su tien
va phan » van phan, va phat, va phap
tu cai » tu cac, tu can, tu bai
cai ky » cao ky, cac ky, cam ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cai ky nang x ho. lieu va phan luoc van hanh vi ((ve triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cai ky nang x ho. lieu va phan luoc van hanh vi ((ve triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: tu cai ky nang x ho. lieu va phan luoc van hanh vi ((ve triet) or (su triet))*.