Perhaps you should try some spelling variations:
nhanh thang » nhanh thanh, nhanh quang, hanh trang
van nhanh » van thanh, van hanh, van khanh
pham duy » pham duc
duc tre » duoc tren, duc tien
cuc tre » cua tre, cuu tre, cuc thue
duy van » duy vat, dung van
ve pham » vi pham, v pham, ve phan
hieu ve » hieu va, hieu van
xay hoi » xa hoi, tay hoi, cay phoi
ky danh » ky anh
ky dang » ky nang
su tai » su thi, tu tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: su tai ((ky dang) or (ky danh)) xay hoi. hieu ve pham duy van nhanh thang ((cuc tre) OR (duc tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su tai ((ky dang) OR (ky danh)) xay hoi. hieu ve pham duy van nhanh thang ((cuc tre) OR (duc tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su tai ((ky dang) or (ky danh)) xay hoi. hieu ve pham duy van nhanh thang ((cuc tre) OR (duc tre))".
• Adding a wildcard symbol may retrieve word variants: su tai ((ky dang) or (ky danh)) xay hoi. hieu ve pham duy van nhanh thang ((cuc tre) OR (duc tre))*.