Perhaps you should try some spelling variations:
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
luc van » luoc van, luu van, luc va
duc van » duc va, duc tan, duc manh
te bai » te bao, te tai, te ban
bai ky » ban ky, sai ky, bac ky
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te bai ky lang xa hoi. hieu vu cham ((luc van) or (duc van)) hanh ((vi cua) OR (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te bai ky lang xa hoi. hieu vu cham ((luc van) OR (duc van)) hanh ((vi cua) OR (di cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te bai ky lang xa hoi. hieu vu cham ((luc van) or (duc van)) hanh ((vi cua) OR (di cua)) tre*".