Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha thi cong snippets" » "pha tai cong snippets", "pha thien cong snippets", "pham thi cong snippets", "phan thi cong snippets", "phap thi cong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("pha thi cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha thi cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha thi cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha thi cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.