Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
va cham » va chat, va tham
lai cua » dai cua, hai cua, lai chau
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
ve cham » ve chat, vu cham, ve chim
cao hoi » cau hoi, co hoi, cao hoc
sac ky » sai ky
lo va » lo van, lao va, ly va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat ((sac ky) or (cac ky)) nang cao hoi. hieu ((ve cham) OR (va cham)) lo va hanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat ((sac ky) OR (cac ky)) nang cao hoi. hieu ((ve cham) OR (va cham)) lo va hanh lai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((sac ky) or (cac ky)) nang cao hoi. hieu ((ve cham) OR (va cham)) lo va hanh lai cua tre".
• Adding a wildcard symbol may retrieve word variants: thuat ((sac ky) or (cac ky)) nang cao hoi. hieu ((ve cham) OR (va cham)) lo va hanh lai cua tre*.