Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho cu hoi snippets" » "cho cu hoi snippets", "pho tu hoi snippets", "pho cau hoi snippets", "pho cua hoi snippets", "pho cuu 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: (((("pho cu hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pho cu hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho cu hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho cu hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.