Perhaps you should try some spelling variations:
nhan cua » nhat cua, nhan luc, nhan su
than cua » thai cua, ban cua, gian cua
van hanh » van thanh, ban hanh, van anh
dang xa » dang xay, dang ha, dang va
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
duc van » duc va, duc tan, duc manh
su sai » su tai, su hai, su dai
sai ky » sac ky
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sai ky ((dang xa) or (lang xa)) hoi. hieu ve cam duc van hanh ((than cua) OR (nhan cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky ((dang xa) OR (lang xa)) hoi. hieu ve cam duc van hanh ((than cua) OR (nhan cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sai ky ((dang xa) or (lang xa)) hoi. hieu ve cam duc van hanh ((than cua) OR (nhan cua)) tre".
• Adding a wildcard symbol may retrieve word variants: su sai ky ((dang xa) or (lang xa)) hoi. hieu ve cam duc van hanh ((than cua) OR (nhan cua)) tre*.