Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao nghi cua snippets" » "dao nguoi cua snippets", "dau nghia cua snippets", "dao thi cua snippets", "dao nghia cua snippets", "dao nghe cua snippets", "dao ngai 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: (((("dao nghi 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: (((("dao nghi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao nghi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao nghi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.