Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nha luoc doi snippets" » "nha nuoc doi snippets", "nha thuoc doi snippets", "nhan cuoc doi snippets", "nha cuoc doi snippets", "nha luoc dai snippets", "nha hoc doi 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: (((("nha luoc 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: (((("nha luoc doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nha luoc doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nha luoc doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.