Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong dem hoi snippets" » "cong de hoi snippets", "cong mem hoi snippets", "cong dieu hoi snippets", "cong dem toi snippets", "cong dep hoi snippets", "cong dam choi 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: (((("cong dem hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong dem hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong dem hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong dem hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.