Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giay van doc snippets" » "gian van doc snippets", "giang van doc snippets", "gioi van doc snippets", "giay van duoc snippets", "giay van hoc snippets", "giay van loc 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 doc 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 doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giay van doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giay van doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.