Perhaps you should try some spelling variations:
"phi doi hoac snippets" » "phi doi code snippets", "phi doi hoa snippets", "phi doi hoat snippets", "phi doi thoai snippets", "phi loi hoac snippets", "phu doi hoac snippets", "khi doi hoac snippets"
"locating bug core snippets" » "locating bug code 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: (((("python using java snippets") or ("phi doi hoac snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("phi doi hoac snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( phi doi hoac snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("phi doi hoac snippets"))) or ("locating bug core snippets"))*.