Perhaps you should try some spelling variations:
nang han » nang phan, nang hang, nang hanh
nang ha » nang hai, nang hoa, lang ha
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
su xac » pu xac, su cac
xac ky » cac ky, sac ky, bac ky
xuc va » duc va, tuc va, luc va
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su xac ky ((nang ha) or (nang han)) hoi. hieu va cac xuc va hanh vi ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ky ((nang ha) OR (nang han)) hoi. hieu va cac xuc va hanh vi ((cua te) OR (cua tu))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su xac ky ((nang ha) or (nang han)) hoi. hieu va cac xuc va hanh vi ((cua te) OR (cua tu))*".