Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
va cham » va chat, va tham
xa hanh » xa thanh, xa khanh, va hanh
hanh va » hang va, hanh vi
nang o » nang co, nang ho, nang ro
va cam » va cac, va cao, va cai
va cau » van cau, va cac, va dau
o hai » co hai, so hai, o lai

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