Perhaps you should try some spelling variations:
luu tuan » huu tuan, luu thanh, luu quang
phap luu » phap lua, phap luat, phap luan
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va phap » va phat, ban phap
tang ma » mang may, tang van
vi luy » vi luu
vi lua » vi luu
te cac » tu cac, ve cac, te cao

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 cac ky ((nang xa) OR (tang ma)) hoi. hieu va phap luu tuan anh ((vi luy) OR (vi lua)) tre~.
• Adding a wildcard symbol may retrieve word variants: te cac ky ((nang xa) or (tang ma)) hoi. hieu va phap luu tuan anh ((vi luy) or (vi lua)) tre*.