Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hieu tin co snippets" » "lieu tin co snippets", "hieu tieng co snippets", "chieu tinh co snippets", "hieu tinh co snippets", "hieu tin so snippets", "hieu tinh cao 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 tin co 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 tin co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hieu tin co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hieu tin co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.