Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc tam can snippets" » "don tam can snippets", "hoc tam can snippets", "duc tam can snippets", "doc tam chan snippets", "doc tac can snippets", "doc tam van 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: (((("doc tam can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc tam can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc tam can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc tam can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.