Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu tren ca snippets" » "hieu truyen ca snippets", "hieu tieng ca snippets", "hieu triet ca snippets", "hieu tren cay snippets", "hieu tren co snippets", "hieu tren c 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 tren ca 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 tren ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu tren ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu tren ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.