Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan su voi snippets" » "phan suc voi snippets", "phan tu voi snippets", "nhan su voi snippets", "phan sua voi snippets", "phan su vi snippets", "phan so voi 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: (((("phan su voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan su voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan su voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan su voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.