Perhaps you should try some spelling variations:
nganh hang » ngan hang, nhanh thang, nganh thanh
luc nganh » luc ngan, chuc nganh, luat nganh
dau tren » dat tren, dau tieng, dau trong
dau tien » van tien
su sach » so sach, vu sach
ty nang » ty xang, ty hang, ly nang
hieu ve » hieu va, hieu van
cam luc » cam xuc, cau luc
hang vi » hang va, hanh vi, hang di
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: su sach ((ty nang) or (ky nang)) xa hoi. hieu ve cam luc nganh hang vi ((dau tren) OR (dau tien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty nang) OR (ky nang)) xa hoi. hieu ve cam luc nganh hang vi ((dau tren) OR (dau tien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ty nang) or (ky nang)) xa hoi. hieu ve cam luc nganh hang vi ((dau tren) OR (dau tien))".
• Adding a wildcard symbol may retrieve word variants: su sach ((ty nang) or (ky nang)) xa hoi. hieu ve cam luc nganh hang vi ((dau tren) OR (dau tien))*.