Perhaps you should try some spelling variations:
mai trinh » mai tinh, lap trinh, mai thanh
cua triet » cua viet, su triet, va triet
pham duy » pham duc
trinh di » trinh do, trinh dien, trinh dinh
sach uu » sach luu, sach tu, sach xu
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve pham » vi pham, v pham, ve phan
duy mai » duy ai, duy thai
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach uu) or (sach ty)) nang xa hoi. hieu ve pham duy mai trinh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach uu) OR (sach ty)) nang xa hoi. hieu ve pham duy mai trinh di cua triet.
• Adding a wildcard symbol may retrieve word variants: tu ((sach uu) or (sach ty)) nang xa hoi. hieu ve pham duy mai trinh di cua triet*.