Perhaps you should try some spelling variations:
xanh hanh » danh thanh, ban hanh, van hanh
suc xanh » suc manh, suc canh, tuoc xanh
hanh tai » thanh tai, hang tai, han tai
tu sach » thu sach, su sach, te sach
cuc tre » duc tre, cua tre, cuu tre
y nang » ly nang, v nang, may nang
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac

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 (ky nang)) xa hoi. hieu ((ve cam) OR (ve cac)) suc xanh hanh tai cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y nang) OR (ky nang)) xa hoi. hieu ((ve cam) OR (ve cac)) suc xanh hanh tai cuc tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((y nang) or (ky nang)) xa hoi. hieu ((ve cam) OR (ve cac)) suc xanh hanh tai cuc tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) or (ky nang)) xa hoi. hieu ((ve cam) OR (ve cac)) suc xanh hanh tai cuc tre*.