Perhaps you should try some spelling variations:
xa thanh » va thanh, ha thanh, ta thanh
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
xa hanh » xa khanh, va hanh, da hanh
cau tuc » cau truc, cau tu, cau luc
van cau » van dau, van hau, van chat
vu nang » vuc nang, va nang, vu dang
v nang » va nang, van nang, voi nang
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

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 ((v nang) or (vu nang)) xa hoi. hieu van cau tuc ((xa hanh) or (xa thanh)) vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((v nang) OR (vu nang)) xa hoi. hieu van cau tuc ((xa hanh) OR (xa thanh)) vi cua tu.
• Adding a wildcard symbol may retrieve word variants: tu sach ((v nang) or (vu nang)) xa hoi. hieu van cau tuc ((xa hanh) or (xa thanh)) vi cua tu*.