Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan vo hon snippets" » "nhan va hon snippets", "nhan mo hon snippets", "than vo hon snippets", "nhan bo hon snippets", "nhan ro hon snippets", "nhan vo chong 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: (((("nhan vo hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan vo hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan vo hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan vo hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.