Perhaps you should try some spelling variations:
nuoc tuan » ngoc tuan, nuoc luan, nuoc quan
toc sach » hoc sach, doc sach, thuoc sach
vien cac » vien bach, vien dai, vien da
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
xanh di » danh di, vanh dai, xanh tai
cua chu » sua chua
ve cac » va cac
anh di » danh di, anh d, anh du

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ty nang xa hoi. hieu ((ve cac) or (vien cac)) nuoc tuan ((anh di) OR (xanh di)) cua chu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ty nang xa hoi. hieu ((ve cac) OR (vien cac)) nuoc tuan ((anh di) OR (xanh di)) cua chu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ty nang xa hoi. hieu ((ve cac) or (vien cac)) nuoc tuan ((anh di) OR (xanh di)) cua chu".
• Adding a wildcard symbol may retrieve word variants: toc sach ty nang xa hoi. hieu ((ve cac) or (vien cac)) nuoc tuan ((anh di) OR (xanh di)) cua chu*.