Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong bao can snippets" » "dong bao can snippets", "cong ba can snippets", "cong bo can snippets", "cong bao cao snippets", "cong ban can snippets", "cong bat can 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 bao can 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 bao can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong bao can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong bao can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.