Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong chat cu snippets" » "cong nhat cu snippets", "cong cua cu snippets", "cong ha cu snippets", "cong chat cua snippets", "cong chat co snippets", "cong hat cu 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: (((("cong chat cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong chat cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong chat cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong chat cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.