Perhaps you should try some spelling variations:
van thiet » va thiet, dan thiet, can thiet
cac cach » cai cach, cuoc cach, va cach
cach may » cach mang, bach mai, cac mau
vu sach » vu bach, su sach, vu khach
tinh vi » trinh vi, tinh voi, tinh va
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y nang x hoi. lieu va cac cach may tinh vi van thiet~.
• Adding a wildcard symbol may retrieve word variants: vu sach y nang x hoi. lieu va cac cach may tinh vi van thiet*.