Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lee liang ca snippets" » "lie liang ca snippets", "lee jian ca snippets", "lee sang ca snippets", "lee liang ya snippets", "lee liang yao snippets", "lee hang ca 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: (((("lee liang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lee liang ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lee liang ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lee liang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.