Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"pham voi do snippets" » "pham voi code snippets", "pham vi do snippets", "cham voi do snippets", "pham doi do snippets", "pham voi doi snippets", "pham voi ho snippets", "pham toi do 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: (((("pham voi do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham voi do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( pham voi do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham voi do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.