Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hai tu cham snippets" » "hai toc cham snippets", "hai thi cham snippets", "hai thu cham snippets", "hoi tu cham snippets", "tai tu cham 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: (((("hai tu cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai tu cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hai tu cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai tu cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.