Perhaps you should try some spelling variations:
dang dai » dang hai, dang bai, lang dai
dang dan » dang dang, dang van, dung dan
phat xuc » chat xuc, phat xuat, phap xu
su phat » su pham, tu phat, xu phat
va dinh » van dinh, va kinh, va tinh
doi cua » dai cua, hoi cua
hieu su » hieu sau, tieu su, hieu so
di cua » dai cua, de cua, do cua
tu cao » cu cao, tu cac, vu cao
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cao ky ((dang dai) or (dang dan)) hoi. hieu su phat xuc va dinh ((di cua) OR (doi cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cao ky ((dang dai) OR (dang dan)) hoi. hieu su phat xuc va dinh ((di cua) OR (doi cua)) tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cao ky ((dang dai) or (dang dan)) hoi. hieu su phat xuc va dinh ((di cua) OR (doi cua)) tu".
• Adding a wildcard symbol may retrieve word variants: tu cao ky ((dang dai) or (dang dan)) hoi. hieu su phat xuc va dinh ((di cua) OR (doi cua)) tu*.