Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phi hoat do snippets" » "phi hoat code snippets", "chi hoat do snippets", "thi hoa do snippets", "thi hoan do snippets", "phi hoat doi snippets", "phi hat do snippets", "phi hoat ho 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: (((("phi hoat 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: (((("phi hoat do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phi hoat do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi hoat do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.