Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khien cuu da snippets" » "khien cua da snippets", "khien cau da snippets", "nghien cuu da snippets", "khien cuu dac snippets", "khien cuu dao snippets", "khien cuu va 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: (((("khien cuu da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khien cuu da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khien cuu da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khien cuu da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.