Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bieu tac cua snippets" » "bieu dac cua snippets", "bieu toan cua snippets", "lieu tai cua snippets", "bieu tac quan snippets", "bieu thuc cua 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: (((("bieu tac cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bieu tac cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bieu tac cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bieu tac cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.