Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc nganh ke snippets" » "hoc nhanh ke snippets", "hoc nganh ky snippets", "hoc nganh kiem snippets", "hoc nganh che 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: (((("hoc nganh ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc nganh ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc nganh ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc nganh ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.