Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luc pham doi snippets" » "luc pham code snippets", "duc pham doi snippets", "luc tham doi snippets", "thuc pham doi snippets", "luc pham do snippets", "luc pham moi snippets", "luc pham voi 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 pham doi 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 pham doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luc pham doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc pham doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.