Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc sieu hoc snippets" » "hoc dieu hoc snippets", "hoc thieu hoc snippets", "hoc hien hoc snippets", "hoc lieu hoc snippets", "hoc hieu hoc snippets", "hoc sieu toc 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: (((("hoc sieu hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc sieu hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc sieu hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc sieu hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.