Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap sua voi snippets" » "nhan su voi snippets", "nhap ca voi snippets", "khat sua voi snippets", "nhap sua doi snippets", "nhap dua voi snippets", "nhap su voi 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 sua voi 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 sua voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap sua voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap sua voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.