Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luc van cuc snippets" » "luc van code snippets", "luoc van cuc snippets", "luu van cuc snippets", "duc van cuc snippets", "luc van duc snippets", "luc van luc snippets", "luc van cu 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: (((("luc van cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc van cuc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luc van cuc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc van cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.