Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tung dai hoi snippets" » "trung dai hoi snippets", "tuong dai hoi snippets", "tung dan hoi snippets", "tung dai hoc snippets", "tung dai hai snippets", "tung dai moi 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: (((("tung dai 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: (((("tung dai hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tung dai hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tung dai hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.