Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tai viet can snippets" » "thi viet can snippets", "mai viet can snippets", "tai lieu can snippets", "tai viet van snippets", "tai viet ca snippets", "tai 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: (((("tai 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: (((("tai viet can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tai viet can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tai viet can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.