Perhaps you should try some spelling variations:
may trinh » may tinh, lap trinh, quy trinh
trinh han » trinh quan
cua triet » cua viet, su triet, va triet
hoc sach » hoc sinh, hoc cac, hoc anh
nam duoc » nam thuoc, da duoc, dat duoc
duoc may » duoc ma, duoc ly, hoc may
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
han cua » hang cua, nhan cua, than cua
va nam » van nam, ha nam, va nay

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so sach) or (hoc sach)) ky nang xa hoi. lieu va nam duoc may trinh han cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (hoc sach)) ky nang xa hoi. lieu va nam duoc may trinh han cua triet.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (hoc sach)) ky nang xa hoi. lieu va nam duoc may trinh han cua triet*.