Perhaps you should try some spelling variations:
cham tuc » nham thuc, pham thuc, tham thuc
cau treo » cau theo, cau tren, cau triet
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
va cham » va chat, va tham
xa hanh » xa thanh, xa khanh, da hanh
va hanh » van hanh, va thanh, va danh
cu tren » tu tren, dua tren
x hoi » xa hoi, o hoi, x ho

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 nang x hoi. hieu va cham tuc ((xa hanh) or (va hanh)) vi ((cau treo) or (cu tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. hieu va cham tuc ((xa hanh) OR (va hanh)) vi ((cau treo) OR (cu tren)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. hieu va cham tuc ((xa hanh) or (va hanh)) vi ((cau treo) or (cu tren))*.