Perhaps you should try some spelling variations:
danh lai » danh sai, gianh lai, dinh lam
hieu va » lieu va, hieu qua
lai cua » dai cua, hai cua, lai chau
va danh » va dinh, va dan, va hanh
nang xa » nang x, lang xa, mang xa
cam tuc » cam xuc, cam tu, nam thuc
nang ma » tang ma, sang ma, nang cao
sach ky » sach y, sach ty, sach kem
tuc va » thuc va, truc va, tuc xa
va cam » va cham, va cac, va cao
sac ky » cac ky, sai ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ky) OR (sac ky)) ((nang xa) or (nang ma)) hoi. hieu va cam tuc va danh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sac ky)) ((nang xa) OR (nang ma)) hoi. hieu va cam tuc va danh lai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sac ky)) ((nang xa) or (nang ma)) hoi. hieu va cam tuc va danh lai cua te".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) OR (sac ky)) ((nang xa) or (nang ma)) hoi. hieu va cam tuc va danh lai cua te*.