Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nha chu chan snippets" » "nha chu han snippets", "nha chua chay snippets", "nha chu van snippets", "nha cu chan snippets", "nha chung chan snippets", "nhan chua chan 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 chu chan 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 chu chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nha chu chan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nha chu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.