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