Perhaps you should try some spelling variations:
thanh dam » thanh dat, thanh tam, thanh lam
thanh nam » thanh tam, thanh pham, thanh nhan
cuoi tre » tuoi tre, choi tre, cho tre
hanh nam » hanh lam, hanh ngay, hoang nam
hieu van » hieu va, thien van, lieu va
cam tuc » cam xuc, cam tu, nam thuc
van cam » van nam, van lam, van cau
nang xa » nang x, lang xa, nang ma
tu sach » thu sach, su sach, te sach
tuc va » thuc va, truc va, tuc xa
y nang » ky nang, ly nang, v nang

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 xa hoi. hieu van cam tuc va ((thanh dam) or (((thanh nam) OR (hanh nam)))) cuoi tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu van cam tuc va ((thanh dam) OR (((thanh nam) OR (hanh nam)))) cuoi tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. hieu van cam tuc va ((thanh dam) or (((thanh nam) OR (hanh nam)))) cuoi tre".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu van cam tuc va ((thanh dam) or (((thanh nam) OR (hanh nam)))) cuoi tre*.