Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap mon que snippets" » "nhap hon que snippets", "nhap mon qua snippets", "nhap thon que snippets", "phap mon que snippets", "nhan mon que snippets", "nhat mon que 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: (((("nhap mon que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhap mon que snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap mon que snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap mon que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.