Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
tu sach » thu sach, te sach, tu cach
tai cuu » tai cuc, tai buu, tai cua
xa hanh » xa thanh, xa khanh, va hanh
cuu tre » cua tre, cau tren, cau treo
ty nang » ky nang, ty xang, ty hang
su sach » so sach, vu sach
ve cac » va cac, vien cac
ve cam » ve cham, 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) or (su sach)) ty nang x ho. hieu ((ve cam) OR (ve cac)) tuc xa hanh tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ty nang x ho. hieu ((ve cam) OR (ve cac)) tuc xa hanh tai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ty nang x ho. hieu ((ve cam) OR (ve cac)) tuc xa hanh tai cuu tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ty nang x ho. hieu ((ve cam) OR (ve cac)) tuc xa hanh tai cuu tre*.