Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho phan hue snippets" » "co phan hue snippets", "hoc phan hue snippets", "hoa phan hue snippets", "cho phan huy snippets", "cho phan huu snippets", "cho pham hue 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: (((("cho phan hue snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho phan hue snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho phan hue snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho phan hue snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.