Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van cong coc snippets" » "van cong code snippets", "van dong coc snippets", "van phong coc snippets", "phan cong coc snippets", "van cong cuoc snippets", "van cong cac snippets", "van cong co snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("van cong coc snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van cong coc snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van cong coc snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van cong coc snippets"))) or ("locating bug core snippets"))*.