Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
qua pham » quan pham, quy pham, qua cham
pham duy » pham duc
vinh cuu » dinh cuu, sinh cua, dinh cu
thu bang » thu ban, thu hang, chu bang
duy ban » uy ban, duy van, duy can
su sach » so sach, vu sach
thu ang » thu hang, thu dang, thu sang
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 ((thu ang) OR (thu bang)) xa hoi. hieu qua pham duy ban thanh ((vi cuu) or (vinh cuu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((thu ang) OR (thu bang)) xa hoi. hieu qua pham duy ban thanh ((vi cuu) OR (vinh cuu)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((thu ang) OR (thu bang)) xa hoi. hieu qua pham duy ban thanh ((vi cuu) or (vinh cuu)) tre".
• Adding a wildcard symbol may retrieve word variants: su sach ((thu ang) OR (thu bang)) xa hoi. hieu qua pham duy ban thanh ((vi cuu) or (vinh cuu)) tre*.