Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chuong va so snippets" » "thuong va so snippets", "chong va so snippets", "huong va so snippets", "chuong ma so snippets", "chuong va su snippets", "chuong va co 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: (((("chuong va so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chuong va so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chuong va so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chuong va so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.