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