Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
qua cham » qua hai, qua cac, va cham
su triet » su viet, su tien, ve triet
nang xa » nang x, lang xa, nang ma
cham tu » pham tu, cam tu, chai tu
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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 ((nang xa) or (lang van)) hoi. hieu qua cham tu va danh va su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((nang xa) OR (lang van)) hoi. hieu qua cham tu va danh va su triet.
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((nang xa) or (lang van)) hoi. hieu qua cham tu va danh va su triet*.