Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
danh dai » danh dau, danh sai, vanh dai
nam luc » nang luc, nhan luc, nam thuc
dang xa » dang xay, dang ha, dang va
danh di » danh du, xanh di, danh dien
lang xa » lang ha, dang xay, lang van
tu sac » tu sach, tu cac, tu san
luc va » duc va, tuc va, loc va
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: tu sac ky ((dang xa) or (lang xa)) hoi. hieu van nam luc va ((danh dai) OR (danh di)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((dang xa) OR (lang xa)) hoi. hieu van nam luc va ((danh dai) OR (danh di)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((dang xa) or (lang xa)) hoi. hieu van nam luc va ((danh dai) OR (danh di)) cua te".
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((dang xa) or (lang xa)) hoi. hieu van nam luc va ((danh dai) OR (danh di)) cua te*.