Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi phap cua snippets" » "theo phap cua snippets", "thi hai cua snippets", "thi ha cua snippets", "thi phap chua snippets", "thi phap lua snippets", "thi phat 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: (((("thi phap 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: (((("thi phap cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi phap cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi phap cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.