Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap ca uoc snippets" » "nhap ca cuoc snippets", "nhap cu uoc snippets", "nhap cap nuoc snippets", "phap ca uoc snippets", "nhan ca uoc snippets", "nhat ca uoc 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 ca uoc 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 ca uoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap ca uoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap ca uoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.