Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho tre cuu snippets" » "khoe tre cuu snippets", "khoa tre cuu snippets", "cho tre cuu snippets", "kho tra cuu snippets", "kho treo chu 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: (((("kho tre cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kho tre cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho tre cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho tre cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.