Perhaps you should try some spelling variations:
danh vai » danh sai, danh va, doanh van
nang doc » nang luc
vu sach » vu bach, su sach, vu khach
vai cuu » vai cua
va danh » va dinh, va dan, va hanh
cuu tre » cua tre, cau tren, cau treo
doc loi » duc loi
vu khac » vu kham, vu khanh, bui khac
ca thu » cac thu, cam thu, ca tru
ca tu » ca tru, cau tu, cac tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((vu sach) or (vu khac)) ky nang doc loi. hieu qua ((ca tu) OR (ca thu)) va danh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu khac)) ky nang doc loi. hieu qua ((ca tu) OR (ca thu)) va danh vai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (vu khac)) ky nang doc loi. hieu qua ((ca tu) OR (ca thu)) va danh vai cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (vu khac)) ky nang doc loi. hieu qua ((ca tu) OR (ca thu)) va danh vai cuu tre*.