Perhaps you should try some spelling variations:
time covid » twice covid, like covid, time david
iii formen » ii formen, die formen
toke david » rose david
qian wang » yiqian wang, qian rong, qian yan
wang yang » wang yan, wang liang, wang yanling
iii form » iii from
hong hai » shang hai, zhong tai, dang hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: qian wang yang ((iii formen) OR (iii form)) ((time covid) or (toke david)) hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: qian wang yang ((iii formen) OR (iii form)) ((time covid) OR (toke david)) hong hai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "qian wang yang ((iii formen) OR (iii form)) ((time covid) or (toke david)) hong hai ;*".