Perhaps you should try some spelling variations:
thanh vien » nhan vien, thanh van
thuat sach » thuat lanh, thuat san
hieu viec » nhieu viec, hieu ve, sieu viet
van thanh » ban thanh, van tuan
cua viet » ca viet, cua vat, cua dieu
cac lo » cac lop, cac bo, cac ho
y nang » ky nang, ly nang, v nang
cac co » cac cong
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: thuat sach y nang x hoi. hieu viec ((cac lo) or (cac co)) van thanh vien ((cua viet) OR (hoa viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y nang x hoi. hieu viec ((cac lo) OR (cac co)) van thanh vien ((cua viet) OR (hoa viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach y nang x hoi. hieu viec ((cac lo) or (cac co)) van thanh vien ((cua viet) OR (hoa viet))".
• Adding a wildcard symbol may retrieve word variants: thuat sach y nang x hoi. hieu viec ((cac lo) or (cac co)) van thanh vien ((cua viet) OR (hoa viet))*.