Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban khi yong snippets" » "ban jhi yong snippets", "ban khi cong snippets", "ban khi dong snippets", "ban thi yong snippets", "ban chi yong snippets", "van khi yong 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: (((("ban khi yong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban khi yong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban khi yong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban khi yong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.