Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
xuc van » duc van, luc van, xuc ban
ve cham » va cham, ve chat, vu cham
cua tuc » cua duc, cua tu, cua thuoc
mai hoi » mai khoi, dai hoi, lai hoi
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
vi cua » vai cua, di cua
ve cam » ve cac, va cam, ve cai

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 ((y nang) OR (v nang)) mai hoi. hieu ((ve cam) or (ve cham)) xuc van hanh vi cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y nang) OR (v nang)) mai hoi. hieu ((ve cam) OR (ve cham)) xuc van hanh vi cua tuc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) OR (v nang)) mai hoi. hieu ((ve cam) or (ve cham)) xuc van hanh vi cua tuc".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) OR (v nang)) mai hoi. hieu ((ve cam) or (ve cham)) xuc van hanh vi cua tuc*.