Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
lang van » dang van, tang van, hoang van
hanh tai » thanh tai, hang tai, han tai
va hanh » van hanh, va thanh, va danh
cam luc » cam xuc, cau luc
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay
va cam » va cham, va cac, va cao
luc va » duc va, tuc va, loc va
te san » te ban, ke san, tu san
tai su » tai so, tai tu, lai su
te sac » te sach, te cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sac) or (te san)) ky ((lang xa) or (lang van)) hoi. hieu va cam luc va hanh tai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te san)) ky ((lang xa) OR (lang van)) hoi. hieu va cam luc va hanh tai su triet.
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te san)) ky ((lang xa) or (lang van)) hoi. hieu va cam luc va hanh tai su triet*.