Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chieu gi ve snippets" » "chieu gio ve snippets", "dieu gi ve snippets", "chiem vi ve snippets", "chieu gia ve snippets", "chieu gi de snippets", "chieu gi 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: (((("chieu gi ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chieu gi ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chieu gi ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chieu gi ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.