Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan hoc vo snippets" » "phan hoc code snippets", "phap hoc vo snippets", "phan hoa vo snippets", "phau hoc vo snippets", "phan hoc va snippets", "phan hoc co snippets", "phan hoc vi 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: (((("phan hoc vo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan hoc vo snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phan hoc vo snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan hoc vo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.