Perhaps you should try some spelling variations:
thanh xuc » thanh xuan, thanh huy, hanh xu
van thanh » ban thanh, van tuan
toc sach » hoc sach, doc sach, thuoc sach
hieu van » hieu va, thien van, lieu va
ty nang » ty xang, ty hang, ly nang
va danh » va dinh, va dan, va hanh
duy cua » day cua, dung cua
xuc va » duc va, tuc va, luc va
du cua » dau cua, dum cua, hu cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach ((ty nang) or (ky nang)) xa hoi. hieu van thanh xuc va danh ((du cua) OR (duy cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ((ty nang) OR (ky nang)) xa hoi. hieu van thanh xuc va danh ((du cua) OR (duy cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ((ty nang) or (ky nang)) xa hoi. hieu van thanh xuc va danh ((du cua) OR (duy cua)) tre".
• Adding a wildcard symbol may retrieve word variants: toc sach ((ty nang) or (ky nang)) xa hoi. hieu van thanh xuc va danh ((du cua) OR (duy cua)) tre*.