Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong lop cac snippets" » "duong loi cac snippets", "dong co cac snippets", "dong luc cac snippets", "dong loi cach snippets", "dong lop sach snippets", "dong luoc cac 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: (((("dong lop cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong lop cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong lop cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong lop cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.