Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, thuc van
lang xa » dang xay, lang van
vai cua » dai cua, hai cua, lai cua
lang ha » long ha
xuc ban » duc ban, cuc ban, quoc ban
su sac » su sach, su cac, su xac
va cam » va cham, va cac, va cao
sac ky » cac ky, sai ky
cua te » cua tu

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

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