Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phai van cho snippets" » "pham van cho snippets", "phan van cho snippets", "thai van cho snippets", "phai van chi snippets", "phai san cho snippets", "phai van chat 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: (((("phai van 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: (((("phai van cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phai van cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phai van cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.