Perhaps you should try some spelling variations:
nuoc van » nuoc va, nuoc san, luoc van
vien cac » vien bach, vien dai, vien da
te sach » toc sach
ty nang » ky nang, ty hang, ly nang
van anh » van thanh, tuan anh, van minh
vi cua » vai cua, di cua
anh vi » hanh vi, anh va, anh ve
cua cu » cua chu, cua cau, cua su
ve cac » va cac

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 ((ty nang) OR (ty xang)) xa hoi. hieu ((ve cac) or (vien cac)) nuoc van anh vi cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ty xang)) xa hoi. hieu ((ve cac) OR (vien cac)) nuoc van anh vi cua cu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) OR (ty xang)) xa hoi. hieu ((ve cac) or (vien cac)) nuoc van anh vi cua cu".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) OR (ty xang)) xa hoi. hieu ((ve cac) or (vien cac)) nuoc van anh vi cua cu*.