Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
day nhanh » day thanh, duy nhanh, dac nhan
cau treo » cau theo, cau tren, cau triet
day hanh » day thanh, dao hanh, day manh
cua tre » cua te, cuu tre, cua triet
vu sach » vu bach, su sach, vu khach
ve pham » vi pham, v pham, ve phan
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y nang xa hoi. hieu ve pham thuc ((day hanh) OR (day nhanh)) de ((cua tre) OR (cau treo))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y nang xa hoi. hieu ve pham thuc ((day hanh) OR (day nhanh)) de ((cua tre) OR (cau treo))".
• Adding a wildcard symbol may retrieve word variants: vu sach y nang xa hoi. hieu ve pham thuc ((day hanh) OR (day nhanh)) de ((cua tre) OR (cau treo))*.