Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang vu cho snippets" » "hoang vu cho snippets", "hang va cho snippets", "hung vu cho snippets", "hang vu cao snippets", "hang cu cho snippets", "hang uu cho 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: (((("hang vu cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hang vu cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hang vu cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hang vu cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.