Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"li weng mong snippets" » "li nen mong snippets", "li mang mong snippets", "li cong mong snippets", "li wang mong snippets", "li wen mong snippets", "li zheng mong 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: (((("li weng mong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("li weng mong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( li weng mong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("li weng mong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.