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