Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can vu hong snippets" » "can vu cong snippets", "can vu thuong snippets", "can du phong snippets", "van vu hong snippets", "can va hong snippets", "can ve hong 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: (((("can vu hong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can vu hong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can vu hong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can vu hong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.