Perhaps you should try some spelling variations:
cheng guan » cheng han, thong guan
cheng yan » cheng han, chen yang, zhang yan
wang yang » wang yan, wang liang, wang yanling
wang tan » wang yan, wang ban, wang dan
dan hai » dang hai, dan phan, dann hat
yang i » yang di, yang xi, yang yi
i dan » i das, _ dan, i can

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang tan ((cheng yan) OR (cheng guan)) wang yang i dan hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang tan ((cheng yan) OR (cheng guan)) wang yang i dan hai ;*".