Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu nhap » thu ha, khu nha
nang cau » nang cao, hang cau, nang dau
doan sai » doan hai, doan mai, doanh tai
dan sai » danh sai, dan tai, dan giai
te sach » toc sach
hieu he » hieu ve, hiem he, hieu le
y nang » ky nang, ly nang, v nang
tu nam » su nam
he nam » ha nam, nghe nam

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 cau hoi. hieu he nam ((tu nam) or (thu nhap)) ((dan sai) or (doan sai)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang cau hoi. hieu he nam ((tu nam) OR (thu nhap)) ((dan sai) OR (doan sai)) cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach y nang cau hoi. hieu he nam ((tu nam) or (thu nhap)) ((dan sai) or (doan sai)) cua triet*.