Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"que cho cong snippets" » "que cao cong snippets", "que cua cong snippets", "que cac cong snippets", "qua cho cong snippets", "quen nho cong snippets", "quoc cho cong 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: (((("que cho cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("que cho cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( que cho cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("que cho cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.