Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"dung van trinh snippets" » "dung van thinh snippets", "dung van tinh snippets", "dung dan trinh snippets", "duong van trinh snippets", "dung va trinh snippets", "dang van trinh snippets"
"hang java java slippers" » "hang va java slippers", "hang java java slippery", "hang 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: (((("dung van trinh snippets") or ("hang java java slippers"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung van trinh snippets") OR ("hang java java slippers"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( dung van trinh snippets ) or ( hang java java slippers ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung van trinh snippets") or ("hang java java slippers"))) or ("locating bugs code snippets"))*.