Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc biet noi snippets" » "hoc viet noi snippets", "khac biet noi snippets", "hoc thiet noi snippets", "hoc bien doi snippets", "hoc dien noi 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: (((("hoc biet noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc biet noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc biet noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc biet noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.