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