Perhaps you should try some spelling variations:
hieu hien » bieu hien, dieu hien, chieu chien
nang hanh » nang thanh, dang hanh, nang hang
thoi nang » thi nang, hoi nang, khoi nang
cac thoi » cac toi, cac hop, cac tro
dang xay » dang van, van xay
hien cac » thien cac, vien cac, hieu cac
vai cua » dai cua, hai cua, lai cua
toc sac » toc sach, toc san, hoc sach
lang xa » lang ha, lang van
sac ky » cac ky, sai ky
vi cua » di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sac ky ((lang xa) or (dang xay)) hoi. hieu hien cac thoi nang hanh ((vi cua) OR (vai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sac ky ((lang xa) OR (dang xay)) hoi. hieu hien cac thoi nang hanh ((vi cua) OR (vai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sac ky ((lang xa) or (dang xay)) hoi. hieu hien cac thoi nang hanh ((vi cua) OR (vai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: toc sac ky ((lang xa) or (dang xay)) hoi. hieu hien cac thoi nang hanh ((vi cua) OR (vai cua)) tre*.