Perhaps you should try some spelling variations:
vat hanh » vat thanh, van hanh, va hanh
su sach » so sach, vu sach
qua bau » qua ban, qua dau, qua lau
bau cua » ban cua, bai cua, cau cua
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
vi cua » vai cua, di cua
cua te » cua tu

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) or (thu hoach)) ((y nang) or (v nang)) xa hoi. hieu qua bau cua vat hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thu hoach)) ((y nang) OR (v nang)) xa hoi. hieu qua bau cua vat hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thu hoach)) ((y nang) or (v nang)) xa hoi. hieu qua bau cua vat hanh vi cua te*.