Perhaps you should try some spelling variations:
2.3.1.2 communication » 2.3.1.1 communication, 2.2.5.4 communication, 3.2.3.2 communication
4.2 developpement » 4.2 development, de developpement, le developpement
technology state » technology strategy, technology system, technology study
developpement de » developpement des, developpement durable
state inflation » estate inflation, stable inflation, rate inflation
inflation 1 » inflation _, inflation a, inflation tax
fig 2.3.1.2 » fig 2.3.1.3, fig 2.3.1.4, fig 2.3.1.5
de force » de forges, de formes, use force
1 fig » 1r fig, 1v fig, 1 big

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• Adding a wildcard symbol may retrieve word variants: technology state inflation 1 fig 2.3.1.2 communication costs 4.2 developpement de force.*.