Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ung tac can snippets" » "tuong tac can snippets", "huong tac can snippets", "muong tac can snippets", "ung tac van snippets", "ung tac quan snippets", "ung tac vang 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: (((("ung tac can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ung tac can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ung tac can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ung tac can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.