Perhaps you should try some spelling variations:
sieu viet » su viet, dien viet, bien viet
minh vai » minh va, minh hai, minh ai
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
vai cuu » vai cua
cuu tre » cua tre, cau tren, cau treo
cac lo » cac lop, cac ho, cac le
cac co » cac cong
cac bo » bac bo

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang xa hoi. sieu viet ((((cac lo) OR (cac co))) or (cac bo)) van minh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. sieu viet ((((cac lo) OR (cac co))) OR (cac bo)) van minh vai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. sieu viet ((((cac lo) OR (cac co))) or (cac bo)) van minh vai cuu tre*".