Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chieu ke cac snippets" » "hieu ky cac snippets", "hieu ve cac snippets", "hieu kem cac snippets", "chieu ke cau snippets", "chieu ve cac snippets", "chieu de cac 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: (((("chieu ke cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chieu ke cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chieu ke cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chieu ke cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.