Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"ca van hoe snippets" » "ca van code snippets", "ca van hoa snippets", "ca van hoc snippets", "ca van hieu snippets", "cac van hoe snippets", "cao van hoe snippets", "can van hoe 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: (((("ca van hoe snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ca van hoe snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( ca van hoe snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ca van hoe snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.