Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao nang hoi snippets" » "cao dang hoi snippets", "cam nang hoi snippets", "cao tang hoi snippets", "cao nang hoc snippets", "cao nang noi snippets", "cao nang ho 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: (((("cao nang hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao nang hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao nang hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao nang hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.