Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho cham hoi snippets" » "pho cam hoi snippets", "khoa cham hoi snippets", "khoe cham hoi snippets", "pho cham voi snippets", "pho cham h'roi snippets", "pho pham hoai 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 cham 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 cham hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho cham hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho cham hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.