Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoa trinh ve snippets" » "hoa tinh ve snippets", "hoa thinh ve snippets", "hoc trinh ve snippets", "hoa trinh he snippets", "hoa trinh va snippets", "hoa trinh vi 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: (((("hoa trinh ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoa trinh ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoa trinh ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoa trinh ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.