Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chieu cao du snippets" » "hieu cac du snippets", "hieu ca du snippets", "chieu day du snippets", "chieu cao duc snippets", "chieu cac du snippets", "chieu cao su 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 cao du 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 cao du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chieu cao du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chieu cao du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.