Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap cai cua snippets" » "phap tai cua snippets", "phap ca cua snippets", "phap cac cua snippets", "phap dai cua snippets", "phap chi cua 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: (((("phap cai cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap cai cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap cai cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap cai cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.