Perhaps you should try some spelling variations:
sach ky » sac ky, sach ty, sach kem
danh va » doanh va, hanh va, anh va
cam luc » cam xuc, cau luc
cua tuc » cua duc, cua tu, cua thuoc
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
luc va » duc va, tuc va, loc va
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) or (sach y)) nang ma hoa. hieu ve cam luc va ((danh va) or (dung tai)) cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) nang ma hoa. hieu ve cam luc va ((danh va) OR (dung tai)) cua tuc.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sach y)) nang ma hoa. hieu ve cam luc va ((danh va) or (dung tai)) cua tuc*.