Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
mai duoc » mai quoc, mai duc, mat duoc
mai khoi » mai khoa, tai khoa, cac khoi
va thanh » gia thanh, ban thanh, va tinh
phan cua » nhan cua, than cua, phat cua
cua viet » ca viet, hoa viet, cua vat
te sach » toc sach
mai doi » moi doi, mai hoi, mai tuoi
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang ((((mai doi) OR (mai duoc))) or (mai khoi)). hieu va pham duc va thanh phan cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((((mai doi) OR (mai duoc))) OR (mai khoi)). hieu va pham duc va thanh phan cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang ((((mai doi) OR (mai duoc))) or (mai khoi)). hieu va pham duc va thanh phan cua viet".
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((((mai doi) OR (mai duoc))) or (mai khoi)). hieu va pham duc va thanh phan cua viet*.