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