Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luoi tinh te snippets" » "hoi tinh te snippets", "loc tinh te snippets", "gioi tinh te snippets", "luoi kinh te snippets", "luoi tinh tu snippets", "luoi tinh he 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: (((("luoi tinh te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luoi tinh te snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luoi tinh te snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luoi tinh te snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.