Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tinh viec » tinh viet, dinh viec, sinh viec
hieu van » hieu va, thien van, lieu va
van nang » van quang, van ban, van dong
nang duc » nang luc, nang doc, nang du
nang ma » tang ma, sang ma, nang cao
va tinh » may tinh
su tien » su kien, su hien, tu tieng
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky nang ma hoi. hieu van nang duc va tinh viec ((cua triet) or (su tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky nang ma hoi. hieu van nang duc va tinh viec ((cua triet) OR (su tien)).
• Adding a wildcard symbol may retrieve word variants: tu cac ky nang ma hoi. hieu van nang duc va tinh viec ((cua triet) or (su tien))*.