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