Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lan cuoi cac snippets" » "lang cuoi cac snippets", "la cuoi cac snippets", "dam cuoi cac snippets", "lan cuoi dac snippets", "lan cuoc cach snippets", "lan cuong cac 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: (((("lan cuoi cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lan cuoi cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lan cuoi cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan cuoi cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.