Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho san le snippets" » "cho can le snippets", "ho san le snippets", "cho sinh le snippets", "cho ban le snippets", "cho van le snippets", "cho son le 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 san le 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 san le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho san le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho san le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.