Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sang cho noi snippets" » "danh cho noi snippets", "dung cho noi snippets", "sang tao noi snippets", "sang cho moi snippets", "sang cho doi snippets", "sang che noi 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: (((("sang cho noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sang cho noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sang cho noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sang cho noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.