Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
hanh thai » nhanh thai, hinh thai, hanh tai
thai cua » than cua, tai cuc, tri cua
van hanh » van thanh, ban hanh, van anh
bach xuc » bach tuoc, bach xuan, bach hue
xuc van » duc van, luc van, vuc van
thu san » thuy san, thu ban, phu san
tu sac » tu sach, tu cac, tu bac
cua te » cua tu
nang o » nang co, nang ho, nang ro
tu san » tu ban, tu can, vu san
o lai » o lao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) or (((tu san) OR (thu san)))) ky nang o lai. hieu vien bach xuc van hanh thai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (((tu san) OR (thu san)))) ky nang o lai. hieu vien bach xuc van hanh thai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) or (((tu san) OR (thu san)))) ky nang o lai. hieu vien bach xuc van hanh thai cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (((tu san) OR (thu san)))) ky nang o lai. hieu vien bach xuc van hanh thai cua te*.