Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
nang ma » tang ma, sang ma, nang cao
anh vai » anh va, anh bai, anh van
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, mang xa
sac ky » cac ky, sai ky
ve dam » ven dam, ke dam, va dam
dam tu » nam tu, cam tu, tam tu
va anh » van anh, va danh, va hanh
vai su » va su, van su, lai su

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ty) or (sac ky)) ((nang xa) OR (nang ma)) hoi. hieu ve dam tu va anh vai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sac ky)) ((nang xa) OR (nang ma)) hoi. hieu ve dam tu va anh vai su triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) or (sac ky)) ((nang xa) OR (nang ma)) hoi. hieu ve dam tu va anh vai su triet*".