Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"do danh cham snippets" » "do hanh cham snippets", "do doanh chau snippets", "do thanh cham snippets", "do dinh cham snippets", "do sanh cham snippets", "dia danh cham 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: (((("do danh cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("do danh cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( do danh cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("do danh cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.