Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"va cao chap snippets" » "va cao code snippets", "va cao chat snippets", "va cao cap snippets", "va cau chap snippets", "va cac chap snippets", "va co chap snippets", "va dao chap 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: (((("va cao chap snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("va cao chap snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( va cao chap snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va cao chap snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.