Perhaps you should try some spelling variations:
may nang » may nong, ky nang, cam nang
thanh ve » hanh ve, thanh va, thanh vien
cac tren » ca tren, cau tren, rac tren
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
ve chat » va chat, van chat
chat so » nhat so, chat co, chat bo
y nang » ky nang, ly nang, day nang
v nang » va nang, vu nang, van nang
so gia » so giai, so giao, ho gia
ve cac » va cac, vien cac

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 ((((y nang) or (may nang))) or (v nang)) xa hoi. hieu ve chat so gia thanh ve cac tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((((y nang) OR (may nang))) OR (v nang)) xa hoi. hieu ve chat so gia thanh ve cac tren.
• Adding a wildcard symbol may retrieve word variants: tu sach ((((y nang) or (may nang))) or (v nang)) xa hoi. hieu ve chat so gia thanh ve cac tren*.