Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
hanh de » hanh ve, hanh kem
luc van » luoc van, luu van, duc van
van hai » van ha, van chat, van phan
van hau » van ha, van dau, van hac
vu nang » vuc nang, va nang, vu dang
v nang » va nang, van nang, voi nang
de cua » le cua, te cua, dieu 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: te sach ((v nang) or (vu nang)) xa hoi. hieu ((van hau) OR (van hai)) luc van hanh de cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((v nang) OR (vu nang)) xa hoi. hieu ((van hau) OR (van hai)) luc van hanh de cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((v nang) or (vu nang)) xa hoi. hieu ((van hau) OR (van hai)) luc van hanh de cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ((v nang) or (vu nang)) xa hoi. hieu ((van hau) OR (van hai)) luc van hanh de cua te*.