Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi quan moi snippets" » "thi quan moi snippets", "phap quan moi snippets", "phan quan moi snippets", "phi quan doi snippets", "phi quan mot snippets", "phi quang hoi 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: (((("phi quan moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi quan moi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi quan moi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi quan moi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.