Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
thai cua » than cua, tai cuc, tri cua
nang dai » nang dau, nang tai, lang dai
van hanh » van thanh, ban hanh, van anh
hieu ve » hieu va, hieu van
luu van » cuu van, luan van, luu hanh
nang du » nang tu, nang luc, nang doc
cam luu » tam luu
ve cam » ve cham, ve cac, va cam
sac ky » sai ky
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so ((sac ky) OR (cac ky)) ((nang dai) or (nang du)) hoi. hieu ve cam luu van hanh thai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sac ky) OR (cac ky)) ((nang dai) OR (nang du)) hoi. hieu ve cam luu van hanh thai cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sac ky) OR (cac ky)) ((nang dai) or (nang du)) hoi. hieu ve cam luu van hanh thai cua tu*".