Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua quang do snippets" » "cua quan do snippets", "qua quang do snippets", "chat quang do snippets", "cua quang d snippets", "cua quang de snippets", "cua quang dong 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: (((("cua quang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua quang do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua quang do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua quang do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.