Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh tai » thanh tai, hang tai, han tai
van hanh » van thanh, ban hanh, van anh
chat xuc » chat huu, cam xuc, chao xu
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
cuc tre » duc tre, cua tre, cuu tre
thu san » thuy san, thu ban, phu san
nang o » nang co, nang ho, nang ro
tu sac » tu sach, tu cac, tu 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 (thu san)) ky nang o lai. hieu van ((cac nuoc) or (chat xuc)) van hanh tai cuc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (thu san)) ky nang o lai. hieu van ((cac nuoc) OR (chat xuc)) van hanh tai cuc tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (thu san)) ky nang o lai. hieu van ((cac nuoc) or (chat xuc)) van hanh tai cuc tre*.