Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhan dao ho snippets" » "nhan dan ho snippets", "nhan tao ho snippets", "nhan dai ho snippets", "nhan dao o snippets", "nhan dao do 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: (((("nhan dao ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhan dao ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhan dao ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhan dao ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.