Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luc dan cac snippets" » "luc dan code snippets", "luu dan cac snippets", "tuc dan cac snippets", "duc dan cac snippets", "luc dan cach snippets", "luc dang cac snippets", "luc dan ca 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 dan cac 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 dan cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luc dan cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc dan cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.