Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai lieu doi snippets" » "tai lieu doi snippets", "da lieu doi snippets", "dai bieu doi snippets", "dai lieu boi snippets", "dai lieu voi snippets", "dai lieu dai 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: (((("dai lieu doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dai lieu doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai lieu doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai lieu doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.