Perhaps you should try some spelling variations:
quy pham » su pham, quy chau, my pham
pham duy » pham duc
vinh cuu » dinh cuu, sinh cua, dinh cu
ban hang » ngan hang
hieu quy » hieu qua, hien quy, thien quy
duy ban » uy ban, duy van, duy can
sach ty » sach tu, sach thu, xach tay
xang xa » lang xa, mang xa, ang xa
vi cuu » vi luu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ty) OR (sach y)) xang xa hoi. hieu quy pham duy ban hang ((vi cuu) or (vinh cuu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach y)) xang xa hoi. hieu quy pham duy ban hang ((vi cuu) OR (vinh cuu)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) OR (sach y)) xang xa hoi. hieu quy pham duy ban hang ((vi cuu) or (vinh cuu)) tre*".