Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hong le don snippets" » "thong le don snippets", "hoang le don snippets", "phong le don snippets", "hong le doan snippets", "hong le dong snippets", "hong le dan 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: (((("hong le don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hong le don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hong le don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hong le don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.