Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan xuan ho snippets" » "pham xuan ho snippets", "phan quan ho snippets", "phan xuat ho snippets", "phan xuan ha snippets", "phan xuan huy snippets", "phan xuan thu 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 xuan ho 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 xuan ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan xuan ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan xuan ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.