Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
hieu van » hieu va, thien van, lieu va
nang ma » tang ma, sang ma, nang cao
van bao » van ban, van dao
cua tre » cua te, cuu tre, cua triet
su cao » cu cao, vu cao, su co
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » tuc va, luc va, xac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su cao) or (tu cac)) ky nang ma hoi. hieu van bao ((xuc va) or (duc va)) hanh trinh cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su cao) OR (tu cac)) ky nang ma hoi. hieu van bao ((xuc va) OR (duc va)) hanh trinh cua tre.
• Adding a wildcard symbol may retrieve word variants: ((su cao) or (tu cac)) ky nang ma hoi. hieu van bao ((xuc va) or (duc va)) hanh trinh cua tre*.