Perhaps you should try some spelling variations:
nganh hang » ngan hang, nhanh thang, nganh thanh
sach tham » sach nha
luc nganh » luc ngan, chuc nganh, luat nganh
dai tren » dat tren, dau tren, dan tren
cham luc » cham soc, nhan luc, cham cuu
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
nang xa » nang x, lang xa, mang xa
hang vi » hang va, hanh vi, hang di
tu sach » thu sach, su sach, te sach
vi dai » si dai, li dai, vien dai

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach tham ((nang xa) OR (nang ma)) hoi. hieu ve cham luc nganh hang vi dai tren~".
• Adding a wildcard symbol may retrieve word variants: tu sach tham ((nang xa) OR (nang ma)) hoi. hieu ve cham luc nganh hang vi dai tren*.