Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu tri cot snippets" » "dieu tri cot snippets", "sieu tri cot snippets", "hieu triet cot snippets", "hieu tri co snippets", "hieu tri mot snippets", "hieu tri cong 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: (((("hieu tri cot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hieu tri cot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu tri cot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu tri cot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.