Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai thanh do snippets" » "tai thanh do snippets", "dao thanh do snippets", "mai thanh do snippets", "dai thanh pho snippets", "dai thanh hoa snippets", "dai thanh loi 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 thanh do 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 thanh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai thanh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai thanh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.