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