Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kinh tac can snippets" » "kinh bac can snippets", "minh tac can snippets", "kinh tam can snippets", "kinh tac van snippets", "kinh tac quan snippets", "kinh tac vang 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: (((("kinh tac 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: (((("kinh tac can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kinh tac can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kinh tac can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.