Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tham sat voi snippets" » "khao sat voi snippets", "giam sat voi snippets", "cham mat voi snippets", "tham sat hoi 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: (((("tham sat voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tham sat voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tham sat voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tham sat voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.