Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham bac do snippets" » "pham bach do snippets", "pham bao do snippets", "pham ba do snippets", "pham bac bo snippets", "pham ban do snippets", "pham bac ho 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: (((("pham bac do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham bac do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham bac do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham bac do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.