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