Perhaps you should try some spelling variations:
xa hanh » xa thanh, xa khanh, va hanh
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
va cam » va cham, va cao, va cai
y nang » ky nang, ly nang, v nang
xuc xa » tuc xa, buc xa
lam su » lai su, lam vu
lam so » lam son, nam so, ham so

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 y nang ma hoa. hieu ((va cam) or (va cac)) xuc xa hanh ((lam su) OR (lam so)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang ma hoa. hieu ((va cam) OR (va cac)) xuc xa hanh ((lam su) OR (lam so)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y nang ma hoa. hieu ((va cam) or (va cac)) xuc xa hanh ((lam su) OR (lam so)) triet".
• Adding a wildcard symbol may retrieve word variants: su sach y nang ma hoa. hieu ((va cam) or (va cac)) xuc xa hanh ((lam su) OR (lam so)) triet*.