Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
cham luc » cham soc, cham cuu, chat lua
thai cua » than cua, tai cuc, tri cua
nhan luc » nang luc
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
hieu va » hieu qua
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
sac ky » cac ky, sai ky
te sac » te sach, te cac, te san

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) or (lieu va)) ((cham luc) OR (nhan luc)) va hanh thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky lang xa hoi. ((hieu va) OR (lieu va)) ((cham luc) OR (nhan luc)) va hanh thai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky lang xa hoi. ((hieu va) or (lieu va)) ((cham luc) OR (nhan luc)) va hanh thai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. ((hieu va) or (lieu va)) ((cham luc) OR (nhan luc)) va hanh thai cua tre*.