Perhaps you should try some spelling variations:
xanh hanh » danh thanh, ban hanh, van hanh
thu sach » tu sach, thuat sach, thuoc sach
thai cua » than cua, tai cuc, tri cua
xuc xanh » tuoc xanh, luc canh, suc manh
tai cua » tai cuc, tri cua, dai cua
sach tu » sach thu, cach tu, sach ty
nang xa » nang x, lang xa, nang ma
tu nang » tru nang, tu nong, tu nano
ve cai » va cai, ve tai, ve cau
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: thu sach tu nang xa hoi. hieu ((ve cai) or (ve cac)) xuc xanh hanh ((tai cua) OR (thai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach tu nang xa hoi. hieu ((ve cai) OR (ve cac)) xuc xanh hanh ((tai cua) OR (thai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach tu nang xa hoi. hieu ((ve cai) or (ve cac)) xuc xanh hanh ((tai cua) OR (thai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: thu sach tu nang xa hoi. hieu ((ve cai) or (ve cac)) xuc xanh hanh ((tai cua) OR (thai cua)) tre*.