Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sang cho hoi snippets" » "danh cho hoi snippets", "dung cho hoi snippets", "sang tao hoi snippets", "sang cho hoc snippets", "sang cho moi snippets", "sang cho doi 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 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: (((("sang cho hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sang cho hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sang cho hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.