Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan cac chan snippets" » "dan cam chan snippets", "dan cac nhan snippets", "dan cac chat snippets", "dan cach chan snippets", "dang cac chan snippets", "dan ca chan 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: (((("dan cac chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan cac chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan cac chan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan cac chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.