Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"viet ta doi snippets" » "viet tay doi snippets", "viet ha doi snippets", "viet tu doi snippets", "viet tao doi snippets", "viet ta oi 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: (((("viet ta doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("viet ta doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( viet ta doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("viet ta doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.