Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"cong tao robot snippets" » "cong cho robot snippets", "cong tac robot snippets", "cong tan robot snippets", "cong bao robot snippets"
"dung java java slippers" » "dung va java slippers", "dung java java slippery", "dung java java grippers"

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: (((("cong tao robot snippets") or ("dung java java slippers"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong tao robot snippets") OR ("dung java java slippers"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( cong tao robot snippets ) or ( dung java java slippers ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong tao robot snippets") or ("dung java java slippers"))) or ("locating bugs code snippets"))*.