Perhaps you should try some spelling variations:
nganh hang » ngan hang, nhanh thang, nganh thanh
dau tren » dau tien, dat tren, dau tieng
hang vi » hang va, hanh vi, hang di
cam luc » cau luc
te sach » toc sach
hieu ve » hieu va, hieu van
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
vi dau » vi dai, va dau, bi dau

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 ((ty nang) OR (ty hang)) xa hoi. hieu ve ((cam luc) or (cam xuc)) nganh hang vi dau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ty hang)) xa hoi. hieu ve ((cam luc) OR (cam xuc)) nganh hang vi dau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) OR (ty hang)) xa hoi. hieu ve ((cam luc) or (cam xuc)) nganh hang vi dau tren".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) OR (ty hang)) xa hoi. hieu ve ((cam luc) or (cam xuc)) nganh hang vi dau tren*.