Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi gioi he snippets" » "thi giong he snippets", "thi moi he snippets", "loi gioi he snippets", "thi gioi ha snippets", "thi gioi se snippets", "thi gioi hien 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: (((("thi gioi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi gioi he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi gioi he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi gioi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.