Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho tre vo snippets" » "khoe tre vo snippets", "khoa tre vo snippets", "cho tre vo snippets", "kho tre so snippets", "kho tre vuot 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: (((("kho tre vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kho tre vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho tre vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho tre vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.