Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
truc va » thuc va, thuc vat, trung va
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
loc va » hoc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky lang xa hoi. hieu va cam ((truc va) or (loc va)) hanh trinh cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang xa hoi. hieu va cam ((truc va) OR (loc va)) hanh trinh cua tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. hieu va cam ((truc va) or (loc va)) hanh trinh cua tre*.