Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van binh so snippets" » "van minh so snippets", "van dinh so snippets", "van linh so snippets", "van hinh so snippets", "van kinh 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: (((("van binh 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: (((("van binh so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van binh so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van binh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.