Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gian mao can snippets" » "gian marco can snippets", "gian muon can snippets", "giang dao can snippets", "gian mao van snippets", "gian mao con snippets", "gian mat can 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: (((("gian mao 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: (((("gian mao can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gian mao can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gian mao can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.