Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giay van du snippets" » "gian van du snippets", "giang van du snippets", "gioi van du snippets", "giay van duy snippets", "giay van dau snippets", "giay van de 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: (((("giay van du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giay van du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giay van du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giay van du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.