Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho fan mo snippets" » "pho can mo snippets", "pho danh mo snippets", "pho mang mo snippets", "pho dan mo snippets", "pho ran mo snippets", "pho van mo 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 fan mo 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 fan mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho fan mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho fan mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.