Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"su triet cua snippets" » "su trien cua snippets", "su tri cua snippets", "su trinh cua snippets", "su viet cua snippets", "su tien cua snippets", "ve triet 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: (((("su triet 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: (((("su triet cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( su triet cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("su triet cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.