Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan hoc cho snippets" » "phan hoc code snippets", "phap hoc cho snippets", "phan hoa cho snippets", "phau hoc cho snippets", "phan hoc cao snippets", "phan hoc pho snippets", "phan hoc 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: (((("phan hoc cho 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 cho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phan hoc cho snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan hoc cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.