Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cho ngan can snippets" » "cho nhan can snippets", "chi ngan can snippets", "chao ngay can snippets", "cho ngan han snippets", "cho ngan van snippets", "cho ngan lan 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: (((("cho ngan can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho ngan can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cho ngan can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho ngan can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.