Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huong bai so snippets" » "cuong bai so snippets", "huong mai so snippets", "phuong bac so snippets", "huong dai so snippets", "huong tai so snippets", "huong hai so 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: (((("huong bai so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huong bai so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huong bai so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huong bai so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.